Duramax Parts

Fuel Filter Assembly for 1992-2002 Chevy GMC 6.5L Diesel — Suburban, Silverado, Sierra, Tahoe, Yukon, Hummer H1 Looking for a fuel filter for your Chevy Suburban 6.5 diesel? Or maybe a GMC Sierra 2500 6.5 diesel fuel filter? This assembly fits them all. Whether you drive a 1994 K2500 work truck, a 1998 Suburban family hauler, a 1995 Tahoe, or a Hummer H1, this complete fuel filter assembly replaces your worn-out filter housing, heater, and filter element in one bolt-on job. OEM part number: 10226035. If your current filter housing is cracked, leaking fuel, has a failed heater connector, or the water-in-fuel sensor is malfunctioning — replacing the entire assembly is more reliable (and often cheaper in labor) than piecing together individual components. This kit includes the filter head, metal housing with integrated fuel heater, mounting bracket, water sensor port, and a fresh filter element — all pre-assembled and ready to bolt on. Why Replace the Whole Assembly? The GM 6.5L diesel's fuel filter housing is a known failure point on high-mileage trucks. The plastic OEM housings warp over time from engine heat, causing air intrusion and hard-starting issues. The fuel heater element can short out, and the threaded fittings can strip. A complete assembly swap solves all these problems at once — and this aftermarket unit uses a metal housing that outlasts the factory plastic design. ⓘ Fitment Note: This assembly fits 1992-2002 GM trucks and SUVs with the 6.5L V8 diesel (engine codes L49/L56/L57/L65). It also fits some 5.7L and 7.4L diesel/gas applications that used this filter style. Not compatible with 2001+ Duramax 6.6L (LB7/LLY/LBZ/LMM/LML/L5P) — those use a completely different filter system. Key Features All-in-One Kit — Filter head, metal housing, fuel heater with connector, water-in-fuel sensor port, mounting bracket, O-rings, and filter element — everything pre-assembled Metal Housing Construction — Far more durable than OEM plastic under sustained engine bay heat and vibration Integrated Fuel Heater — Prevents fuel gelling in cold weather; essential for winter operation in northern climates Water-in-Fuel Sensor Port — Retains factory WIF sensor functionality; compatible with original wiring connector 30-Micron Filtration Media — Cellulose/synthetic blend filter element traps contaminants before they reach the injection pump and injectors Pre-Threaded Mounting Points — Direct bolt-on — no drilling, tapping, or modifications needed Reusable Housing — When it's time for a filter change, just swap the TP1256 replacement element — no need to replace the entire assembly Complete Vehicle Compatibility Chevrolet Model Years Engine Notes Blazer (Full-Size K5) 1992–1999 6.5L V8 Diesel K5 Blazer / Tahoe predecessor C1500 / Silverado 1500 1992–1999 6.5L V8 Diesel 2WD 1/2-ton pickup C1500 Suburban 1992–1999 6.5L V8 Diesel 2WD 1/2-ton SUV C2500 / Silverado 2500 1992–2000 6.5L V8 Diesel 2WD 3/4-ton pickup C2500 Suburban 1992–1999 6.5L V8 Diesel 2WD 3/4-ton SUV C3500 / Silverado 3500 1992–2002 6.5L V8 Diesel 2WD 1-ton pickup C3500HD 1992–2002 6.5L V8 Diesel 2WD heavy-duty chassis cab Express 1500/2500/3500 1996–2002 6.5L V8 Diesel Full-size van G20 / G30 1992–1996 6.5L V8 Diesel Predecessor to Express van K1500 / Silverado 1500 4WD 1992–1999 6.5L V8 Diesel 4WD 1/2-ton pickup K1500 Suburban 1992–1999 6.5L V8 Diesel 4WD 1/2-ton SUV K2500 / Silverado 2500 4WD 1992–2000 6.5L V8 Diesel 4WD 3/4-ton pickup K2500 Suburban 1992–1999 6.5L V8 Diesel 4WD 3/4-ton SUV K3500 / Silverado 3500 4WD 1992–2002 6.5L V8 Diesel 4WD 1-ton pickup P30 1992–1999 6.5L V8 Diesel Forward-control chassis (step van/motorhome) Tahoe (2-door & 4-door) 1995–1999 6.5L V8 Diesel Full-size SUV GMC Model Years Engine Notes C1500 / Sierra 1500 1992–1999 6.5L V8 Diesel 2WD 1/2-ton pickup C1500 Suburban 1992–1999 6.5L V8 Diesel 2WD 1/2-ton SUV C2500 / Sierra 2500 1992–2000 6.5L V8 Diesel 2WD 3/4-ton pickup C2500 Suburban 1992–1999 6.5L V8 Diesel 2WD 3/4-ton SUV C3500 / Sierra 3500 1992–2002 6.5L V8 Diesel 2WD 1-ton pickup C3500HD 1992–2002 6.5L V8 Diesel Heavy-duty chassis cab G2500 / G3500 1992–1996 6.5L V8 Diesel Full-size van K1500 / Sierra 1500 4WD 1992–1999 6.5L V8 Diesel 4WD 1/2-ton pickup K1500 Suburban 1992–1999 6.5L V8 Diesel 4WD 1/2-ton SUV K2500 / Sierra 2500 4WD 1992–2000 6.5L V8 Diesel 4WD 3/4-ton pickup K2500 Suburban 1992–1999 6.5L V8 Diesel 4WD 3/4-ton SUV K3500 / Sierra 3500 4WD 1992–2002 6.5L V8 Diesel 4WD 1-ton pickup P3500 1992–1999 6.5L V8 Diesel Forward-control chassis Savana 1500/2500/3500 1996–2002 6.5L V8 Diesel Full-size van Yukon (2-door & 4-door) 1992–1999 6.5L V8 Diesel Full-size SUV AM General Model Years Engine Hummer H1 1994–2001 6.5L V8 Turbo Diesel Cross-Reference Part Numbers GM OEM: 10226035, 10154635, 10183997, 25176756 Aftermarket: TP1256, BF1201, P550352, FS1295, PS7358 ACDelco: TP1256, 33376, 33976 WIX: 33379 NAPA: 3960 Other: 5742602, XF54719, F54719 Technical Specifications Specification Detail Filtration Rating 30 Micron (nominal) Filter Media Cellulose / synthetic blend Housing Material Metal (steel) with corrosion-resistant coating Fuel Heater Integrated 12V heating element with OEM-style connector WIF Sensor Port Compatible with factory water-in-fuel sensor Inlet/Outlet Size 3/8\" quick-connect (matches OEM) Filter Replacement Interval Every 10,000-15,000 miles Weight Approx. 2.6 lbs (1.17 kg) Installation Overview Relieve fuel system pressure and disconnect battery Disconnect fuel lines (quick-connect fittings) and WIF sensor connector Remove mounting bolts from old filter housing bracket Install new assembly — bolts directly to factory mounting points Reconnect fuel lines, WIF sensor, and heater connector Prime fuel system by cycling ignition key (ON for 10 seconds, OFF, repeat 3-4 times) Start engine and check for leaks at all connections ⚠️ Torque Warning: When tightening the filter cap onto the housing, hand-tighten firmly then add no more than 1/4 turn with a wrench. Over-tightening is the #1 cause of cap leaks and difficult future filter changes. The O-ring does the sealing — not raw torque. FAQ Q: Will this fit my 1994 Chevy K2500 with the 6.5L turbo diesel?A: Yes. This assembly directly fits all 1992-2002 GM C/K 1500, 2500, and 3500 series trucks with the 6.5L V8 diesel engine, including your 1994 K2500. Q: Does this include the filter element?A: Yes. The assembly comes with a filter element pre-installed. When it's time for your next filter change, you can purchase our replacement filter element (sold individually or in value packs of 3-pack and 6-pack). Q: My truck has a hard start and loses prime overnight. Will this fix it?A: Very likely yes. Air intrusion through a cracked filter housing or failed O-rings is one of the most common causes of hard starting and prime loss on the GM 6.5L diesel. Replacing the complete assembly with new seals and housing eliminates these leak paths. Also check your lift pump and fuel lines if the problem persists. Q: Is the fuel heater functional?A: Yes. The integrated 12V fuel heater uses the OEM-style connector and activates automatically in cold temperatures to prevent fuel gelling and improve cold-start performance. It's essential if you operate in winter conditions. Q: How does this compare to the OEM plastic housing?A: The original GM housing (ACDelco 10226035) is plastic and known to warp, crack, and leak over time — especially on high-mileage trucks. This aftermarket replacement uses a metal housing that's significantly more durable under sustained engine bay heat. It meets or exceeds OEM filtration specifications at a fraction of the dealer price. Q: Do I need to bleed the fuel system after installation?A: Yes. After installation, cycle the ignition key to the ON position (not START) for 10 seconds, then OFF for 5 seconds. Repeat 3-4 times. This runs the lift pump and purges air from the system. You should hear the pump pitch change when air is purged. Then start the engine and let it idle for 2-3 minutes while checking for leaks. Q: Will this fit my 2003 Duramax?A: No. This assembly is for the 6.5L diesel (1992-2002). Duramax 6.6L engines (2001+) use an entirely different filter system. Please check our Fuel Filter collection for Duramax-compatible options. Q: What's the difference between the filter element and the full assembly?A: TP1256 is the filter element (the replaceable cartridge with cap and gasket). 10226035 is the complete assembly — housing, heater, bracket, and filter element together. This product is the complete assembly. If you only need replacement filter elements, see our TP1256 filter element multipacks. 📦 Need Replacement Filters? Save on future filter changes with our TP1256 filter element value packs: Single TP1256 Filter Element — $22.99 3-Pack Value Bundle — Save 27%, $49.99 6-Pack Best Value — Save 36%, $87.99 ($14.67/filter) For full installation instructions, see our DIY fuel filter replacement guide with step-by-step video. 🔧 OEM Cross-Reference & Compatibility OEM Part Number Brand Notes 10226035 GM / ACDelco Original GM part number TP1015 ACDelco Direct replacement PF46108 Baldwin Premium aftermarket equivalent P553207 Donaldson Heavy-duty equivalent 33826 Wix Aftermarket equivalent FF5320 Fleetguard Cummins OEM equivalent Vehicles: 1992-2002 Chevy/GMC 6.5L Diesel — Blazer, Suburban, Tahoe, Yukon, C/K1500-3500. Also fits 6.5L turbo diesel van chassis.

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Fuel Filter Head Assembly for 2005-2013 Duramax 6.6L LLY/LBZ/LMM — with Billet Bleeder Screw Upgrade Any Duramax owner who's fought with a seized bleeder screw knows the frustration — that plastic factory screw welds itself into the filter head, and one wrong twist with a screwdriver rounds off the slots, leaving you unable to bleed air from the fuel system after a filter change. This replacement fuel filter head assembly solves that problem permanently. It includes a CNC-machined billet aluminum bleeder screw that won't strip, won't seize, and gives you positive control every time you service your fuel filter. Complete with a new hand primer pump and all mounting provisions, it's the upgrade your Duramax deserves. Key Features Billet Aluminum Bleeder Screw: CNC-machined from 6061-T6 aluminum with a hex-head design — no more stripped plastic screw slots. Apply a wrench for positive bleed control during filter priming. New Hand Primer Pump: Includes a fresh diaphragm-style hand primer that produces firm, consistent pressure to push fuel through the new filter and purge air without excessive pumping. Complete Filter Head: Replaces the entire factory filter head assembly, including the filter mounting thread boss, WIF sensor port, fuel inlet/outlet ports, and heater element provision — not just a partial rebuild kit. Direct Bolt-On Fit: All mounting points match the factory bracket on 2005-2013 Silverado and Sierra 2500HD/3500HD trucks. Remove the old head, transfer your sensors, bolt this one on. Proper Fuel Routing: Internal passages are correctly sized to maintain factory fuel flow rates, preventing the restriction issues that plague some cheaper aftermarket filter heads. Vehicle Compatibility Make Model Years Engine Engine Code Chevrolet Silverado 2500HD/3500HD 2005-2013 6.6L Duramax Turbo Diesel LLY, LBZ, LMM GMC Sierra 2500HD/3500HD 2005-2013 6.6L Duramax Turbo Diesel LLY, LBZ, LMM Technical Specifications Specification Value Part Type Fuel Filter Head Assembly (Complete) Replaces OEM 12642623 (GM/ACDelco) Bleeder Screw Material 6061-T6 Billet Aluminum, CNC Machined Bleeder Screw Drive Hex Head (Wrench-Operated) Primer Pump Diaphragm-Type Hand Primer (Included) WIF Sensor Port Yes — Accepts Factory Sensor Fuel Heater Provision Yes — Compatible with Factory Heater Element Filter Thread Standard Duramax Spin-On Filter Thread Inlet/Outlet Size Matches Factory Fuel Line Fittings Why Upgrade Your Filter Head? The OEM Duramax filter head has two well-known weaknesses that this assembly addresses. First, the plastic bleeder screw: it's a Phillips/flathead combo that strips with alarming regularity. Once stripped, you can't effectively bleed the system, and many owners resort to cracking a fuel line fitting (which introduces its own risks). Second, the hand primer diaphragm hardens and loses effectiveness over time, making filter priming a tedious, multi-minute pumping ordeal. This assembly replaces both failure points with upgraded components while maintaining compatibility with all your factory sensors and heater. Installation Guide Disconnect both negative battery cables before starting — you'll be working near the alternator and starter wiring on the passenger side of the engine. Remove the inner fender liner for better access to the filter head mounting bolts — it adds 10 minutes to the job but saves an hour of frustration. Transfer the WIF sensor and fuel heater element from your old filter head to the new one. Inspect each O-ring and replace if they show any signs of flattening or cracking. Torque the filter head mounting bolts to 18 ft-lbs — the aluminum bracket threads will strip if over-torqued. Lubricate the new billet bleeder screw threads with a small amount of anti-seize compound before installation — this prevents galling and ensures smooth operation for years of filter changes. After installation, fill the new filter with clean diesel, install it on the head, and use the hand primer until firm resistance is felt. Open the bleeder screw, continue pumping until bubble-free fuel emerges, then close the bleeder and start. Frequently Asked Questions Q: Will this fit the 2001-2004 LB7 Duramax?A: No, the LB7 uses a different fuel filter head design with a different mounting pattern and port configuration. This assembly is designed for 2005-2013 LLY, LBZ, and LMM engines only. For 2011-2016 LML trucks, a different filter head is also required. Q: Does this include the fuel filter element?A: No, the fuel filter element is sold separately. This assembly accepts standard Duramax spin-on fuel filters (ACDelco TP3018, Wix 33960, or equivalent). We recommend replacing the filter whenever you replace the filter head. Q: The factory bleeder screw is completely stripped and I can't get it out. What now?A: If the bleeder screw is seized beyond removal, don't risk cracking the housing by forcing it — you're replacing the entire filter head anyway. Simply disconnect the fuel lines and remove the complete assembly. The old bleeder screw doesn't need to come out separately. Q: Can I still use my edge programmer or tuning with this filter head?A: Yes. This filter head is a mechanical component with no electronic interfaces. It has no effect on engine tuning, programmers, or emissions equipment. Fuel flow rates are maintained at factory specifications.

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GF652/FF5026 Professional Inline Fuel Filter for 1988-2006 GM Gas & Diesel Trucks and SUVs Your GM truck or SUV has been on the road for decades, and if the inline fuel filter hasn't been changed recently, you're asking the fuel pump to work against unnecessary restriction. A clogged filter reduces fuel volume to the engine, causing lean conditions, stumbling under acceleration, and eventually burning out the in-tank fuel pump from excessive load. This GF652/FF5026 inline fuel filter is the correct replacement for dozens of GM trucks, SUVs, and vans spanning nearly two decades of production. It's a simple, inexpensive maintenance item that protects your entire fuel delivery system. Key Features High-Efficiency Filtration Media: Multi-layer cellulose-synthetic blend captures contaminants down to 10 microns while maintaining full fuel flow — your engine gets clean fuel without restriction. Steel Canister Construction: Heavy-gauge steel body with anti-corrosion coating withstands road salt, under-chassis moisture, and gravel impacts far better than plastic-body alternatives. Universal GM Cross-Reference: Replaces GF652, FF5026, 33481, G3727, and dozens of other part numbers — verify your application, but this filter covers a massive range of GM vehicles. Barbed Inlet/Outlet: Standard 3/8" barbed fittings accept factory fuel line quick-connects or standard fuel injection hose clamps for secure, leak-free installation. Correct Burst & Collapse Ratings: Engineered to handle fuel injection system pressures (up to 100 PSI operating, 300+ PSI burst) without ballooning or collapsing, even when partially loaded with contaminants. Vehicle Compatibility Make Model Years Engine Types Chevrolet / GMC C/K 1500, 2500, 3500 1988-2000 4.3L V6, 5.0L V8, 5.7L V8, 7.4L V8, 6.5L Diesel Chevrolet Silverado 1500/2500/3500 1999-2006 4.3L, 4.8L, 5.3L, 6.0L, 8.1L Gas GMC Sierra 1500/2500/3500 1999-2006 4.3L, 4.8L, 5.3L, 6.0L, 8.1L Gas Chevrolet Suburban / Tahoe 1992-2006 5.7L, 5.3L, 6.0L, 8.1L Gas / 6.5L Diesel GMC Yukon / Yukon XL 1992-2006 5.7L, 5.3L, 6.0L, 8.1L Gas / 6.5L Diesel Cadillac Escalade 2002-2006 5.3L, 6.0L Gas Chevrolet Avalanche / Express / Astro / Blazer Various Various Gas Engines (Verify Fitment) Technical Specifications Specification Value Part Number GF652 / FF5026 Filter Type Inline Fuel Filter (Canister) Filtration Rating 10 Microns (Nominal) Body Material Steel with Anti-Corrosion Coating Inlet / Outlet Size 3/8" Barbed Fittings Operating Pressure Up to 100 PSI Burst Pressure >300 PSI Flow Direction Marked on Canister — Install Arrow Toward Engine Cross-Reference Numbers GF652, FF5026, 33481, G3727, GF481, and many others Why Regular Fuel Filter Changes Matter on Older GM Trucks On 1988-2006 GM trucks and SUVs, the inline fuel filter is located along the frame rail under the driver's side of the vehicle. It's exposed to road spray, salt, mud, and all the debris kicked up by the front tire. Over time, rust can perforate the canister, internal media can become saturated with water and debris, and the filter becomes a flow restriction instead of a protection device. A restricted filter forces the in-tank fuel pump to work harder (higher amperage draw, more heat, shorter life) and starves the engine under high-demand conditions like towing or passing. GM's recommended interval is every 30,000 miles, but many owners go 100,000+ without a change. If you don't know when yours was last replaced, it's time. Installation Guide Relieve fuel system pressure before disconnecting lines: remove the fuel pump relay or fuse, start the engine, and let it stall. On older trucks, depress the Schrader valve on the fuel rail to verify zero pressure. The filter is located on the driver's side frame rail, roughly under the driver's door area. It may be covered by a plastic or metal shield that needs to be unbolted first. Have a drain pan ready — even with pressure relieved, there will be residual fuel in the lines and old filter. Safety glasses are essential; fuel in the eyes is no joke. Note the flow direction arrow on the old filter before removal. The new filter MUST be installed with the arrow pointing toward the engine (direction of fuel flow). If your truck uses quick-disconnect fittings, use the proper GM fuel line disconnect tool (3/8" size). Do NOT use pliers or screwdrivers — you'll damage the retaining clips and potentially the fuel line itself. After installation, reinstall the fuel pump relay/fuse, cycle the key to "Run" 3-4 times (each cycle primes for ~2 seconds), then start and inspect both connections for leaks. Frequently Asked Questions Q: How do I know if this GF652 filter fits my specific truck?A: This filter fits the vast majority of 1988-2006 GM full-size trucks and SUVs with gasoline engines (and the 6.5L diesel). The easiest way to verify is to check if your old filter has GF652, FF5026, or 33481 stamped on it. If you're unsure, message us with your year, make, model, and engine size and we'll confirm compatibility. Q: Can I use this for a diesel application beyond the 6.5L?A: The GF652 is primarily designed for gasoline fuel injection systems and the 6.5L Detroit Diesel used in 1992-2000 GM trucks. It is NOT suitable for Duramax diesel engines (2001+) which use a different filter specification with water separation capability. Q: My truck has over 200,000 miles. Is it too late to start changing the fuel filter?A: It's never too late to start proper maintenance. However, if your filter has been neglected for an extended period, be aware that the fuel pump may have been working against a restricted filter for a long time. After installing a new filter, the reduced restriction may expose a weak fuel pump — if you notice pressure issues after the change, the pump (not the filter) was likely near end of life. Q: Does this filter work with E85 / flex-fuel vehicles?A: Yes. The filter media and canister construction are compatible with ethanol-blended fuels up to E85. However, vehicles running high-ethanol fuel may require more frequent filter changes, as ethanol can loosen deposits in older fuel tanks and fuel lines, causing the filter to load up faster than normal.

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CNC Billet Aluminum Fuel Filter Cap for 2017-2020 Duramax L5P — Replaces OEM 134001 The L5P Duramax is the most powerful diesel GM has ever put in a heavy-duty truck, pushing 445 horsepower and 910 lb-ft of torque. But its factory fuel filter cap — a plastic component subjected to heat cycles, vibration, and repeated filter changes — remains a weak link. Cracked caps cause fuel leaks, stripped threads mean you can't properly seal the filter housing, and a failed cap on the road can leave you stranded. This billet aluminum fuel filter cap is CNC-machined from solid 6061-T6 aluminum for a lifetime of filter changes without deformation, stripping, or cracking. Key Features 6061-T6 Billet Aluminum: Precision CNC-machined from a solid block of aerospace-grade aluminum, not cast, not molded — this cap maintains dimensional accuracy through extreme temperature cycling and years of filter changes. Anodized Finish: Hard-coat anodized surface resists corrosion from road salt, diesel fuel exposure, and under-hood chemicals — it won't pit, oxidize, or degrade like raw aluminum. Stripped-Thread Insurance: The factory plastic cap threads are notorious for cross-threading and stripping, especially during roadside filter changes. Precision-cut aluminum threads engage smoothly and stay true for the life of the cap. OEM Fitment: Designed as a direct replacement for GM part number 134001, the L5P's factory fuel filter cap. Same dimensions, same O-ring seal interface, zero modifications required. Hex-Drive Center: The machined hex recess accepts a standard socket or wrench for positive removal torque — no more struggling with a filter strap wrench in the tight engine bay. Vehicle Compatibility Make Model Years Engine Chevrolet Silverado 2500HD 2017-2020 6.6L Duramax L5P Turbo Diesel Chevrolet Silverado 3500HD 2017-2020 6.6L Duramax L5P Turbo Diesel GMC Sierra 2500HD 2017-2020 6.6L Duramax L5P Turbo Diesel GMC Sierra 3500HD 2017-2020 6.6L Duramax L5P Turbo Diesel Technical Specifications Specification Value Part Type Fuel Filter Housing Cap Material 6061-T6 Billet Aluminum Manufacturing Process CNC Machined (Not Cast or Molded) Finish Hard-Coat Anodized (Corrosion Resistant) Replaces OEM 134001 (GM/ACDelco) Thread Type Precision-Cut Aluminum, OEM Profile Drive Style Machined Hex Recess (Socket-Compatible) Application Under-Hood Fuel Filter Housing (Engine-Mounted) Weight Approximately 0.45 lbs (Significantly Heavier than Plastic OEM) Why Replace Your Plastic Factory Cap? The OEM plastic fuel filter cap on the L5P is adequate when new, but repeated heat cycling (from -20°F winter starts to 220°F+ under-hood temps during heavy towing) causes the nylon material to degrade. The threads gradually lose their crisp profile, making each filter change harder than the last. Eventually, the cap either won't tighten to a proper seal (causing a fuel leak and loss of prime) or the drive recess rounds out, trapping a stuck cap on the housing. This billet aluminum replacement eliminates all three failure modes. It's a one-time upgrade that pays for itself the first time you avoid a roadside filter change nightmare. Installation & Maintenance This cap is a direct swap — remove the factory plastic cap, transfer the O-ring (or install a new one — recommended), and thread on the billet aluminum cap. Apply a thin film of clean diesel fuel or silicone-based O-ring lubricant to the seal before installation — this ensures a smooth seal and prevents O-ring pinching. Hand-tighten until the O-ring contacts the sealing surface, then snug with a socket — the aluminum-to-plastic thread interface doesn't require extreme torque. Snug is sufficient. After installation, cycle the ignition to prime the system (the L5P's electric lift pump handles this automatically) and inspect for any seepage. During future filter changes, the aluminum threads will remain true and smooth — no galling, no binding, just consistent, reliable operation. Frequently Asked Questions Q: Will this cap fit the 2020+ L5P trucks with the 10-speed Allison?A: Yes. The fuel filter housing design carried over unchanged for all L5P-equipped trucks through the 2020 model year. If your truck is a 2017, 2018, 2019, or 2020 Silverado HD or Sierra HD with the 6.6L L5P, this cap fits. Q: Do I need a special O-ring with this aluminum cap?A: No, the cap is designed to use the standard OEM-specification O-ring that comes with your L5P fuel filter (ACDelco TP1018 or equivalent). We strongly recommend replacing the O-ring with each filter change — never reuse an old O-ring regardless of cap material. Q: Won't the aluminum cap corrode against the factory plastic housing?A: No. Aluminum and nylon composite are galvanically compatible — there's no dissimilar-metal corrosion concern. The anodized finish provides an additional barrier, and the O-ring seal prevents direct metal-to-plastic contact at the sealing surface. Q: Is this cap compatible with the passenger-side frame-rail filter on the L5P?A: No. The L5P has two fuel filters — the engine-mounted filter (driver's side, under the hood) and the chassis-mounted filter (passenger side, frame rail). This cap is specifically for the under-hood engine-mounted filter housing. The frame-rail filter uses a different cap design. 🔧 OEM Cross-Reference & Compatibility OEM Part Number Brand Notes 134001 GM / ACDelco Original GM fuel filter cap Fitment: 2017-2020 Chevy Silverado / GMC Sierra 2500HD 3500HD 6.6L Duramax L5P. Replaces the plastic factory cap prone to cracking and stripping. CNC-machined billet aluminum construction with upgraded O-ring seal. Common failure: Factory plastic cap cracks from overtightening, causing air leaks in the fuel system — symptoms include hard starting, rough idle, and P0087 low fuel rail pressure code.

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[Fitment]: Replacement for 2300 500 CFM 2 Barrel Manual Choke GMC CJ5 CJ7 F100 Carburetors.Replacement for 2 Barrel street application perfect for racing classes where 2 barrel carburetors are required. [Function]:The carburetor has an optimized street calibration function. [Features]: Manual choke for precise cold start control. And 50cc accelerator pump for additional fuel under initial acceleration. [Note]: The carburetor is not designed to meet any emission requirements for 1968 or later applications, and can only be used for racing / off-road vehicles or vehicles that do not need to meet the emission standards of the latest models [Package includes]: 1*carburetor,2*fuel filter,1*fuel line,1*Air cleaner stud,4*clamps,1*Red choke positive wire,1*Black choke ground wire ,1*Square-bore base gasket,1*Air horn gasket,1*Hex nut,2*Vacuum caps,1*Vacuum “T”,1*Throttle cable ball end stud.Other necessary components.

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TP1256 Fuel Filter 3-Pack for 1992–2002 Chevy GMC 6.5L Diesel — Suburban, Silverado, Sierra, Tahoe, Yukon, Hummer H1 Why buy one fuel filter for your Chevy Suburban or GMC Sierra diesel when you can cover your next 45,000 miles for less? This 3-pack of replacement fuel filter elements gives you three complete filter changes at a 27% discount versus buying individually. Each filter includes the cap and O-ring gasket — just unscrew the old, screw in the new, and you're back on the road in 10 minutes. 📦 What's in the Box: 3 × replacement fuel filter elements, each with its own cap and O-ring gasket. Three complete filter changes in one order. Individually sealed to prevent contamination before installation. Why Buy a 3-Pack? Save Money: $49.99 for 3 vs $68.97 for 3 singles — that's $18.98 saved (27% discount) No Last-Minute Parts Store Run: Your next two filter changes are already on your garage shelf Roadside Insurance: Keep one in your truck. Bad fuel or a clogged filter won't leave you stranded — a roadside filter swap takes 10 minutes with basic tools Consistent Quality: All three filters from the same production batch — identical fit, filtration, and performance every change Fleet-Friendly: If you run multiple 6.5L trucks, a 3-pack (or our 6-pack) keeps your whole fleet maintained on the same schedule Key Features Complete Filter + Cap + O-Ring Assembly — Unlike bare filter elements that require you to reuse an old, potentially cracked OEM cap, each TP1256 filter in this 3-pack arrives with a new cap and O-ring gasket pre-installed. One piece, one swap, zero reuse of worn components. GM 10226035 Housing Compatible — Designed as a direct drop-in replacement for the factory GM 10226035 fuel filter housing assembly. Same thread pitch, same sealing surface, same fuel flow characteristics as OEM. IATF 16949 Certified Manufacturing — Produced in ISO/TS-certified facilities. Consistent filtration efficiency protecting the 6.5L's Stanadyne DB2/DS4 rotary injection pump from particulate and water damage. Pre-Lubricated O-Ring — Each cap comes with a pre-lubricated O-ring gasket for a smooth, leak-free seal. No dry O-ring binding during installation. Compatibility — GM 6.5L Diesel Applications Make Models Years Chevrolet Silverado / C/K 1500, 2500, 3500 1992–2002 Chevrolet Suburban 1992–1999 Chevrolet Tahoe 1995–1999 Chevrolet Blazer (Full-Size) 1992–1999 Chevrolet Express Van 1996–2002 GMC Sierra / C/K 1500, 2500, 3500 1992–2002 GMC Suburban 1992–1999 GMC Yukon 1992–1999 GMC Savana Van 1996–2002 AM General Hummer H1 1994–2001 Replacement Interval Guide Driving Condition Recommended Interval Daily driving / light duty Every 15,000 miles Heavy towing / hauling Every 10,000 miles Biodiesel blends (B5–B20) Every 7,500 miles Dusty / off-road conditions Every 7,500 miles Water-in-fuel warning triggered Replace immediately Pro tip: Write the date and mileage on the filter box when you install it. Keep the empty box as a record. You'll never second-guess when your next change is due. Specifications Specification Value OEM Part Number TP1256, 10226035 Filter Type Spin-on fuel filter with integrated cap Micron Rating 10 micron nominal Includes Cap Yes — each filter has cap + O-ring pre-installed Pack Quantity 3 complete filter assemblies Frequently Asked Questions Q: Does the 3-pack include caps?A: Yes. Each of the three filter elements comes with its own cap and O-ring gasket. You're getting three complete filter changes — no need to reuse old, potentially cracked OEM caps. Q: Will these fit my factory GM filter housing?A: Absolutely. They're designed as direct replacements for the GM 10226035 filter housing, whether your truck has the original OEM housing or an aftermarket replacement. Q: Why does the 6.5L diesel need frequent filter changes?A: The GM 6.5L's Stanadyne rotary injection pump relies on clean, water-free diesel fuel. Water and particulate contamination are the #1 and #2 causes of DB2/DS4 pump failure — each costing $800–$1,200 in parts alone. A $16 filter every 15,000 miles is the cheapest insurance you can buy for this engine. Q: I do my own maintenance. Is the 3-pack worth it?A: If you own one 6.5L diesel and drive 15,000 miles a year, the 3-pack covers 3 years of filter changes. At $49.99 vs $68.97 for singles, that's essentially a free filter. It's the no-brainer choice for DIY owners. Q: What are signs my fuel filter is clogged?A: Hard starting (especially when warm), loss of power under load, stalling after a few minutes of driving, or the engine cutting out on hills. These classic 6.5L symptoms often trace back to a neglected fuel filter. Change it first before chasing injection pump problems. Related Products: Single Filter | 6-Pack (Best Value) | Complete Assembly | DIY Installation Guide

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Replace Part Number：PF2129G, PF2129GF, PF2129, PF2130, 92149006, 19355319, 25195785. Compatible with: Chevrole-t, GMC, or Cadilla-c sports utility vehicle and light duty truck. 3.6L LFX LY7 V6 Engine. Details in detail page. Excellent Performance: 98% excellent filtering capabilities, blocks and filters 25-30 micron particles, providing clean oil to engine components and reducing engine wear. High Material: Made from durable fabric and cap seal, extends life time. Package Include: 3*PF2129G Oil Filter.

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6-Pack Replacement Fuel Filters for 1992-2002 Chevy GMC 6.5L Diesel — Fleet Value, Suburban Silverado Sierra Hummer H1 The ultimate fuel filter value bundle for your 6.5L diesel. Six complete filter changes for $87.99 — that's just $14.67 per filter, a 36% discount compared to buying individually. Whether you maintain a fleet of Chevy Silverados and GMC Sierras, a farm full of GM diesel equipment, or just want to lock in years of maintenance at today's price, this 6-pack is the smartest buy for your Suburban, Tahoe, or Hummer H1. 📦 What's in the Box: 6 × replacement fuel filter elements, each with cap and O-ring gasket. Six complete filter changes — 90,000 miles of fuel system protection. Price Comparison Option Quantity Price Per Filter Savings Single 1 $22.99 $22.99 — 3-Pack 3 $49.99 $16.66 27% 6-Pack 6 $87.99 $14.67 36% Who Buys the 6-Pack? Fleet operators: If you run 2-3 GM 6.5L trucks, the 6-pack keeps your entire fleet on the same maintenance schedule Farm & ranch owners: Multiple diesel trucks, generators, and equipment — one filter fits them all Shops & mechanics: Keep replacement filters in stock for your 6.5L diesel customers Long-term owners: Lock in today's price for the next 5-6 years of maintenance Hummer H1 collectors: These vehicles are appreciating — maintaining them with quality parts is an investment in value Installation Quick Reference Place drain pan under filter housing Unscrew old cap (strap wrench may help if overtightened) Remove old filter and clean housing threads with a rag Apply thin film of clean diesel to new O-ring Screw new cap/filter in hand-tight, then 1/4 turn only with wrench Cycle key ON 3-4 times to prime system Start engine, idle 2 minutes, check for leaks 🔧 The #1 Installation Mistake: Using a wrench to crank the filter cap as tight as possible. The O-ring does the sealing — excessive torque deforms the gasket and causes the exact leaks you're trying to prevent. Hand-tight + 1/4 turn. That's it. FAQ Q: Is the 6-pack really the best deal?A: At $14.67 per filter vs $22.99 for a single, you save $49.95 across the 6-pack. If you're going to own your 6.5L diesel for more than 2 filter changes, the 6-pack pays for itself. Q: Can I store these long-term?A: Yes. Keep them in a cool, dry location in their sealed packaging. Shelf life is 5+ years under proper storage conditions. Avoid high-humidity environments — the cellulose filter media can absorb moisture. Q: Do fleet orders get additional discounts?A: For orders of 5+ 6-packs (30+ filters), contact us for wholesale pricing. We supply several diesel repair shops and fleet operators with bulk orders. Q: What if the filter looks different from my old one?A: Replacement filters from different manufacturers may have slightly different cap colors or branding, but the thread pattern, diameter, O-ring seat, and filtration specs are standardized to fit the 10226035 housing. If you have any fitment concerns, our customer service team can verify compatibility for your specific vehicle. Related Products: Single Filter | 3-Pack | Complete Assembly | DIY Guide

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1R-0750 Aluminum Fuel Filter Housing for 2001–2016 Duramax 6.6L Diesel If you own a Duramax, you've probably heard the horror stories — or lived one. The OEM plastic fuel filter housing cap on 2001–2016 GM trucks is notorious for cracking, warping, and leaking under the heat and pressure of daily driving. When it fails, it doesn't just create a mess — it introduces air into the fuel system, causing hard starts, rough idle, and potential CP3/CP4 injection pump damage. This CNC-machined 6061-T6 billet aluminum refit head eliminates that failure point permanently. ⚠️ Common Symptom Check: Hard start after sitting overnight? Air in the clear fuel line? Fuel smell under the hood? Your plastic factory filter cap may already be failing. This billet aluminum upgrade is a one-and-done fix. Key Features CNC-Machined 6061-T6 Billet Aluminum — Precision-machined from aerospace-grade aluminum bar stock, not cast. Maintains dimensional stability through extreme heat cycles that warp and crack OEM plastic caps. Permanent Upgrade Over OEM Plastic — The factory plastic filter head on Duramax engines is a known weak point. Heat cycling causes micro-cracks that grow into air leaks — introducing air into the CP3 high-pressure pump. This aluminum housing eliminates the problem at the source. Accepts Standard 1R-0750 / BF7633 Filter Elements — Designed to work with the same OEM-spec secondary fuel filter elements you already use. No special filters required — just swap the cap and use your regular filter. Anodized Corrosion Protection — Hard anodized finish resists corrosion from road salt, diesel fuel exposure, and under-hood chemicals. Won't rust, pit, or degrade like untreated aluminum or plastic. O-Ring Groove Precision — The sealing surface is machined to exact OEM tolerances for a consistent, leak-free seal with the filter element gasket every single change. Compatibility Year Make Model Engine 2001–2004 Chevy / GMC Silverado 2500HD/3500HD, Sierra 2500HD/3500HD 6.6L Duramax LB7 2004.5–2006 Chevy / GMC Silverado 2500HD/3500HD, Sierra 2500HD/3500HD 6.6L Duramax LLY 2006–2007 Chevy / GMC Silverado 2500HD/3500HD, Sierra 2500HD/3500HD (Classic) 6.6L Duramax LBZ 2007.5–2010 Chevy / GMC Silverado 2500HD/3500HD, Sierra 2500HD/3500HD 6.6L Duramax LMM 2011–2016 Chevy / GMC Silverado 2500HD/3500HD, Sierra 2500HD/3500HD 6.6L Duramax LML Specifications Specification Value Material 6061-T6 Billet Aluminum Finish Hard Anodized (Clear or Black) Filter Compatibility 1R-0750, BF7633, P551313, 3114 secondary filters Manufacturing Process CNC Machined (not cast) Thread Standard OEM filter thread Why Upgrade to Aluminum? The Duramax secondary fuel filter housing operates in one of the hottest areas of the engine bay — directly above the turbo and exhaust manifold on the passenger side of the engine. The OEM plastic cap undergoes extreme thermal cycling: cold winter mornings, 200°F+ under load, and everything in between. Over 50,000–100,000 miles, this cycling causes the plastic to develop micro-cracks at the thread roots and sealing surfaces. Once air enters the fuel system, the CP3 high-pressure pump loses prime — resulting in hard starts, rough running, and accelerated pump wear. This billet aluminum cap solves the problem with a material that doesn't fatigue, warp, or crack from heat cycling. Frequently Asked Questions Q: Will this fit my 2015 Duramax LML?A: Yes. This housing fits all 2001–2016 Duramax 6.6L engines, including LML (2011–2016). It uses the same 1R-0750 secondary filter element you're already running. Q: Do I need to replace the whole filter assembly or just the cap?A: This is a direct replacement for the factory cap/filter head only. You keep your existing filter base/housing on the engine. Installation is: remove old plastic cap, swap the filter element into the new aluminum cap, screw it on. 15 minutes, basic hand tools. Q: How do I know if my OEM plastic cap is failing?A: Signs include: hard starting after the truck sits overnight, visible air bubbles in the clear fuel line between the filter and CP3 pump, fuel residue around the filter cap, or the cap feeling unusually loose when tightening. If you see any of these, replace the cap before it strands you. Q: Does this use the same O-ring as the factory cap?A: Yes. The O-ring that comes with your standard 1R-0750 or BF7633 filter element works perfectly. No special gaskets or seals required. Q: Can I use this with a lift pump?A: Yes. This aluminum housing is fully compatible with aftermarket lift pump systems (FASS, AirDog, etc.). The machined sealing surfaces handle the increased fuel pressure without leaking.

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1R-0750 Secondary Fuel Filter 3-Pack for 2001–2016 Duramax 6.6L & Caterpillar Engines The 1R-0750 secondary fuel filter is the last line of defense before fuel enters your Duramax's CP3 high-pressure injection pump — and it's the most overlooked maintenance item on these trucks. This 3-pack of secondary fuel filters provides three complete changes for 2001–2016 Duramax 6.6L engines (all generations: LB7 through LML) plus Caterpillar D4E and D6H heavy equipment. Each filter is individually sealed and manufactured in IATF 16949 certified facilities. 💡 Pro Tip: The secondary filter (on the engine, passenger side) should be replaced every other oil change — not just when you remember. With this 3-pack, you're covered for ~45,000 miles of driving. Pair with our billet aluminum filter head to permanently upgrade the failure-prone plastic cap while you're in there. Key Features IATF 16949 Certified Filtration — Manufactured to the same quality standard required for OE suppliers to GM and Caterpillar. Consistent micron rating, flow rate, and burst strength across every filter. Secondary (Final) Filtration Stage — This is the engine-mounted secondary filter, downstream from the primary fuel filter/water separator. It provides the final filtration before fuel hits the CP3 high-pressure pump — the most critical filtration stage in the Duramax fuel system. Multi-Layer Synthetic Media — Designed for the 26,000+ psi fuel pressures generated by the CP3 common-rail system. Captures contaminants as small as 4 microns absolute to protect injector nozzles from erosion. 3-Pack Value — Three filters at a bulk price. Covers three secondary filter changes (roughly 45,000 miles of driving for the average Duramax owner). Keep one on the shelf and never run an overdue filter. Dual Application — On-Highway + Off-Highway — Same filter element used in both the Duramax 6.6L and Caterpillar D4E/D6H heavy equipment engines. If you run a Duramax truck and Cat equipment, one filter SKU covers both. Compatibility Application Year Make / Model Engine Chevrolet / GMC 2001–2016 Silverado 2500HD/3500HD, Sierra 2500HD/3500HD 6.6L Duramax LB7, LLY, LBZ, LMM, LML Caterpillar — D4E, D6H LGP Cat 3114, 3116 Diesel Cross-Reference Brand Part Number CAT (OEM) 1R-0750 Baldwin BF7633 Fleetguard P551313 Donaldson P551313 WIX 33114 Installation Guide — Duramax Secondary Filter The secondary fuel filter is located on the passenger side of the engine, mounted to the intake manifold area. It's the smaller of the two fuel filters on the Duramax — not the large spin-on filter under the driver's door (that's the primary). Tools needed: 36mm socket or filter wrench, clean rags, diesel-rated container for spills. Process: (1) Place a container under the filter housing to catch fuel. (2) Unscrew the cap/filter assembly — the filter element stays inside the cap. (3) Remove old filter, wipe the housing interior clean. (4) Install new filter into cap with new O-ring. (5) Reinstall cap — hand-tighten, then 1/4 turn with wrench. (6) Cycle key to ON (not start) 3-5 times to prime. (7) Start engine and check for leaks. Frequently Asked Questions Q: Which filter is this — primary or secondary?A: This is the secondary (final) filter — the smaller filter mounted on the engine, passenger side. It's the last filtration stage before the CP3 high-pressure fuel pump. The primary filter (larger, frame-mounted under driver's door) is a separate part. Q: How often should I change the secondary fuel filter?A: Every other oil change, or approximately every 15,000 miles under normal driving conditions. If you tow heavy or run biodiesel blends, change every 10,000 miles. The CP3 pump relies on clean fuel — a clogged secondary filter starves the pump and damages injectors. Q: Does this fit my Caterpillar D6H dozer?A: Yes. The 1R-0750 is the standard secondary fuel filter for Cat D4E and D6H LGP models with the 3114/3116 diesel engine. It's the same filter element used in the Duramax — one part number for both applications. Q: Do I need special tools for the Duramax filter change?A: A 36mm socket or a dedicated filter cap wrench makes the job easier. The filter housing is plastic (OEM) — avoid using a strap wrench directly on the cap, as it can crack. If you're upgrading to an aluminum cap, use our billet aluminum refit head for a permanent upgrade. Q: What happens if I don't change the secondary filter on time?A: A clogged secondary filter restricts fuel flow to the CP3 pump. Symptoms progress from hard starting → rough idle → power loss under load → CP3 pump cavitation damage → injector failure. On a Duramax, CP3 replacement is $1,500+. A $17 filter is cheap insurance.

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Fitment: Fuel filter Housing Cap for GM Duramax 6.6L L5P 2017-2020(Chevy Silverado/GMC Sierra 2500HD 3500HD),Cruze 2014-2015 2.0L,Cruze 2017-2019 1.6L. Replaces part number:134001. Material: Made of CNC Billet 6061-T6 Aluminum, more durable and longer using time than OEM cap. Advantage: This housing is engineered and manufactured to fit and function like the factory housing (while being much stronger),Won't easily to be cracked when installing/removing. Package includes:1 x fuel filter housing cap(Do not include O-ring),1 x drain plug.       Housing cover Our housing cap is carefully crafted with CNC billeted aluminum for longer-lasting durability and reliability.Your standard plastic cap would be easily cracked when over tightened or long term used.You can simply remove your old cap and screw your new cap on its place using a 1-7/16" socket wrench.Grooves on the side for easy removal and installation. Product Features & Specifications 🚗 Exact Fitment Compatible with GM Duramax 6.6L L5P 2017-2020 (Chevy Silverado / GMC Sierra 2500HD 3500HD). Also fits Cruze 2014-2015 2.0L and Cruze 2017-2019 1.6L. Direct replacement for OEM part number 134001 — no modifications required. 🔩 Upgraded Stainless Steel Drain Plug Equipped with a premium stainless steel drain plug that outperforms common aluminum plugs in corrosion resistance and longevity. Zero rust concerns, reliable draining every time. Lifetime warranty included on the drain plug screw accessory. 🛠️ CNC Billet 6061-T6 Aluminum Construction Precision-machined from aerospace-grade 6061-T6 billet aluminum — significantly tougher than the OEM plastic cap. Engineered to withstand repeated installation and removal cycles without cracking, stripping, or warping under high-heat diesel engine conditions. 📦 Package Contents 1 × Fuel Filter Housing Cap (O-ring not included) 1 × Stainless Steel Drain Plug ✅ iFJF Quality Promise Every cap undergoes precision machining and rigorous fitment testing before leaving the factory. We stand behind our manufacturing — if it doesn't fit perfectly, we'll make it right. ⚙️ Why Upgrade from OEM? The factory plastic housing cap is a known weak point on the L5P Duramax — prone to cracking during routine filter changes. Our billet aluminum replacement eliminates this failure point permanently while adding the convenience of a tool-free drain plug for mess-free oil changes.

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iFJF A3231C Engine Air Filter — Keep Your Duramax L5P Breathing Clean Your 6.6L L5P Duramax moves upwards of 900 CFM at full boost. Every cubic foot of that air passes through the engine air filter before it hits the turbocharger. A clogged, cheap, or torn filter doesn't just choke power — it sends abrasive particulate straight into the compressor wheel, through the intercooler, and into your cylinders. The iFJF A3231C is a direct drop-in replacement for the OEM air filter on 2017–2019 Silverado & Sierra 2500HD/3500HD trucks. High-flow synthetic cellulose media. Precision-molded polyurethane perimeter seal. No tuning required. No fitment drama. Just cleaner air for a harder-working engine. 📊 iFJF A3231C vs. OEM ACDelco Air Filter Specification iFJF A3231C OEM ACDelco A3231C Filter Media High-Flow Synthetic Cellulose Blend Standard Cellulose Paper Media Layering Progressive-Density (Gradient) Single-Density Pleat Design Deep-Pleat, High Surface Area Standard Pleat Count Perimeter Seal Molded Polyurethane — No Bypass Foam / Rubber Gasket Airflow Restriction Low-Restriction at Rated CFM Standard Restriction Dirt-Holding Capacity Enhanced — Longer Service Life Baseline Price $29.99 $38–$55 🚛 Compatible Vehicles Chevrolet Silverado 2500HD / 3500HD 2017 · 2018 · 2019 6.6L L5P Duramax Turbo Diesel V8 GMC Sierra 2500HD / 3500HD 2017 · 2018 · 2019 6.6L L5P Duramax Turbo Diesel V8 ⚠️ Fitment Note: Confirmed for 2017–2019 L5P air filter housings only. Some 2020 models use a revised airbox design — verify your housing before ordering. Not compatible with 2011–2016 LML trucks. 🔢 Cross-Reference / Replaces OEM Part Numbers ACDelco: A3231C GM Genuine: 84262965 WIX: CA12258 Baldwin: LAF3231 Purolator: 33-5065 ⚙️ Technical Specifications Part Number A3231C (FJ-AF07) Dimensions 11" L × 11" W × 3" H Filter Media Progressive-Density Synthetic Cellulose Blend Pleat Design Deep-Pleat — Maximized Surface Area Seal Type Molded Polyurethane Compression Gasket Support Heavy-Gauge Expanded Metal Backing Service Interval Inspect 15K mi / Replace 30K mi (Normal) or 15K mi (Severe Duty) Installation Drop-in — Under 2 Minutes, No Tools Required 🛠️ Installation — 90-Second Drop-In OPEN THE AIRBOX: Release the 4 spring clips on the factory air filter housing. Lift the lid enough to access the old filter. REMOVE OLD FILTER: Pull the old filter straight out. Note which side faces up (the dirty side will be darker). INSPECT THE AIRBOX: Wipe out any debris, leaves, or sand from the bottom of the airbox with a shop rag. Check that the airbox drain hole isn't plugged. DROP IN THE A3231C: Seat the filter with the polyurethane gasket facing the clean-air side (toward the intake tube). The gasket compresses when you close the lid — that's your seal. CLOSE AND CLIP: Press the lid down evenly and re-engage all 4 spring clips. Give it a wiggle — the lid should be tight with no gaps. ❓ FAQ Q: Will this fit my 2020 Silverado 2500HD L5P?A: Maybe not. GM revised the air filter housing on some 2020 L5P trucks. The A3231C is confirmed for 2017–2019 model years. Check your existing air filter part number — if it's stamped A3231C or 84262965, this fits. If it's a different number, your truck may use the revised housing. Q: How often should I replace the air filter?A: GM recommends inspection at every oil change and replacement at 30,000 miles. In practice, if you tow, drive gravel, or operate in dusty conditions (construction, agriculture, Southwest desert), replace every 15,000 miles. A $28 filter is cheap insurance against a dusted turbo or scored cylinder walls. Q: Will this air filter give me more horsepower?A: The A3231C is not a "performance" filter in the oiled-cotton sense — it's an OEM-spec replacement engineered for better filtration at equal or lower restriction. On a dyno, you won't see a horsepower gain. What you will get is cleaner intake air, longer turbo life, and the confidence that your filter media isn't collapsing under high boost. For a true high-flow upgrade on a tuned truck, aftermarket intake systems exist — but for a stock or lightly modified daily driver or tow rig, this is the filter you want. Q: Will using an aftermarket air filter void my warranty?A: No. The Magnuson-Moss Warranty Act protects your right to use aftermarket replacement parts. The iFJF A3231C meets or exceeds GM's filtration and airflow specifications. As long as the filter itself doesn't cause a failure (and it won't — it's a direct dimensional and performance equivalent), your warranty is safe. Q: What's the micron rating on this filter?A: The A3231C uses progressive-density media — the outer layer captures 20+ micron particles (visible dust, pollen, insects) while the inner layer traps sub-10-micron particulate. This staged filtration approach balances airflow with protection, matching the L5P's factory-engineered filtration requirements. 🛒 Complete Your L5P Maintenance Need the fuel filter too? TP1015 + A3231C Air Filter Combo — both filters in one order, one shipping charge Just the fuel filter? TP1015 Fuel Filter — 5-micron absolute filtration for your CP4.2 pump Upgrade your fuel filter cap? Silver 134001 Billet Cap + TP1015 Kit — fix the brittle OEM plastic cap permanently 💡 TIP: A dirty air filter doesn't just hurt performance — it increases fuel consumption. A restricted filter forces the turbo to work harder to pull air, which the ECM compensates for with more fuel. Keep your A3231C clean, and your Duramax will return better MPG.

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Product Overview The iFJF Duramax LMM EGR Delete Kit is a comprehensive engine preservation solution for 2007.5–2010 Chevrolet Silverado and GMC Sierra HD trucks equipped with the 6.6L LMM Duramax turbo diesel. This complete kit addresses the single most problematic emissions system on the LMM platform — the exhaust gas recirculation system — which is widely recognized by diesel technicians and Duramax enthusiasts as a leading cause of reduced engine longevity, decreased fuel economy, and expensive component failures. On the LMM Duramax, the EGR system routes soot-laden exhaust gas through an EGR cooler (a heat exchanger prone to internal cracking), then into the intake tract via the EGR valve. When the EGR cooler fails — and they do fail, often catastrophically — coolant enters the intake stream, leading to hydrolock risk, head gasket failure, and turbocharger damage. Even when functioning "correctly," the system coats the intake manifold, intake valves, and swirl flaps with a thick layer of carbon-coke that progressively restricts airflow and degrades performance. Our kit provides everything needed for a complete EGR system removal: a CNC billet EGR valve delete block off plate, a billet EGR cooler delete bridge, and a high-flow passenger-side up-pipe that replaces the factory pipe's EGR takeoff port. Every component is precision-machined from 6061-T6 billet aluminum or mandrel-bent from 304 stainless steel, designed to withstand the extreme heat, pressure, and vibration cycles unique to the 6.6L Duramax platform. Key Features Complete Three-Component Kit — Unlike partial kits that only delete the EGR valve, the iFJF LMM kit includes: (1) CNC billet EGR valve block off plate, (2) billet aluminum EGR cooler delete bridge, and (3) 304 stainless steel passenger-side up-pipe without EGR takeoff. This is the full system — everything you need in one box. EGR Cooler Delete Bridge — The LMM's EGR cooler is the most failure-prone component in the system. Our billet aluminum delete bridge replaces the cooler entirely, eliminating the risk of internal coolant leaks into the intake. The bridge routes coolant directly to the factory return path, maintaining proper cooling system function without the EGR cooler in the circuit. 304 Stainless Steel Up-Pipe — The passenger-side up-pipe replaces the factory pipe that routes exhaust from the exhaust manifold to the turbocharger. By eliminating the EGR takeoff port, this pipe delivers unrestricted exhaust flow to the turbine — reducing backpressure and improving turbo spool characteristics compared to the restricted factory pipe. 6061-T6 Billet Aluminum Construction — Both the valve block off plate and cooler delete bridge are CNC machined from solid 6061-T6 billet aluminum bar stock. No castings, no stampings — just precise, warp-resistant components that maintain seal integrity under the extreme thermal cycling of a 6.6L turbo diesel. Complete Hardware & Gasket Kit — Includes all required stainless steel bolts, washers, exhaust gaskets, O-rings, and coolant hose fittings for a proper, leak-free installation. No trips to the parts store mid-install. Compatibility Year Range Make Model Engine Notes 2007.5–2010 Chevrolet Silverado 2500HD 6.6L Duramax LMM (LLY-based) All cab configurations 2007.5–2010 Chevrolet Silverado 3500HD 6.6L Duramax LMM SRW & DRW 2007.5–2010 GMC Sierra 2500HD 6.6L Duramax LMM All cab configurations 2007.5–2010 GMC Sierra 3500HD 6.6L Duramax LMM SRW & DRW Important fitment notes: 2007.5 model year only — This kit fits the "Classic" body style transition trucks produced from mid-2007 onward. It is not compatible with 2001–2007 LB7/LLY/LBZ Duramax engines, which use a different EGR and up-pipe configuration. Not compatible with 2011+ LML Duramax — The LML (2011–2016) uses a different EGR and exhaust architecture. This kit is specific to the LMM engine code. Cab-and-chassis models — Verify up-pipe clearance on cab-and-chassis configurations; fitment confirmed for standard pickup bed configurations. Specifications EGR Valve Block Off Plate: 6061-T6 billet aluminum, CNC machined, 6.35 mm (1/4") thickness EGR Cooler Delete Bridge: 6061-T6 billet aluminum, CNC machined with integrated coolant passage Passenger Up-Pipe: 304 stainless steel, mandrel-bent, TIG-welded flanges, 2.5" OD tubing Up-Pipe Flanges: Laser-cut 304 stainless steel, 3/8" thickness, TIG-welded with back-purged welds Hardware: Grade 304 and 316 stainless steel bolts, nuts, and washers (application-specific) Gaskets & Seals: Multi-layer stainless steel (MLS) exhaust gaskets, Viton O-rings for coolant fittings Surface Finish: Block off plate and bridge — CNC natural finish; up-pipe — brushed stainless Package Weight: Approximately 3.6 kg (8.0 lbs) Package Contents: 1× EGR valve block off plate, 1× EGR cooler delete bridge, 1× 304SS passenger up-pipe, MLS exhaust gaskets (×4), Viton O-rings (×2), stainless hardware kit, coolant hose fittings, installation guide Installation Notes Disconnect both batteries — Duramax HD trucks have dual batteries. Disconnect negative terminals on both before starting any work near the starter, alternator, or engine harness. Drain coolant — Drain approximately 2–3 gallons from the radiator petcock. The EGR cooler is part of the engine coolant circuit, and you will lose coolant when removing the cooler. Remove the factory EGR cooler — The LMM EGR cooler is located on the passenger side of the engine, mounted between the exhaust up-pipe and the intake manifold. Disconnect the coolant lines (mark their routing), unbolt the cooler from its bracket, and remove it. Remove the factory up-pipe — The passenger-side up-pipe connects the exhaust manifold to the turbocharger. The factory pipe incorporates the EGR cooler feed port. Remove the turbo heat shield, unbolt the up-pipe from the manifold and turbo flanges, and extract the pipe. This is often the most time-consuming step — expect to work in tight quarters. Install the iFJF up-pipe — Position the 304SS up-pipe, install new MLS gaskets at both the manifold and turbo flanges, and torque bolts to factory specification (typically 30–35 ft-lbs). The TIG-welded flanges ensure perfect alignment. Install the cooler delete bridge — Connect the coolant lines to the delete bridge using the supplied fittings and Viton O-rings. The bridge maintains proper coolant flow routing while eliminating the cooler from the circuit. Install the valve block off plate — Remove the EGR valve from the intake manifold, install the block off plate with the supplied gasket, and torque to specification. Refill coolant and bleed the system — Refill with the correct Dex-Cool compatible coolant, perform the bleed procedure (elevate front of vehicle, run engine with heater on full), and check for leaks at all connections. ECU tuning required — The LMM ECM will detect the missing EGR system components and trigger diagnostic trouble codes, potentially entering reduced-power (limp) mode. A custom ECM tune is required to disable EGR-related DTCs and restore full engine functionality. Tools needed: Standard and deep metric socket sets (8 mm–15 mm), torque wrench, coolant drain pan, penetrating oil, hose clamp pliers, turbo heat shield tools, floor jack and stands for under-vehicle access. Estimated time: 4–6 hours for an experienced DIY mechanic; 3–4 hours for a professional diesel technician. Frequently Asked Questions Why should I delete the EGR on my LMM Duramax? The LMM EGR system is the leading cause of several expensive failure modes on the 6.6L Duramax. The EGR cooler is known to crack internally, introducing coolant into the intake — a condition that can hydrolock the engine and bend connecting rods. Even a properly functioning EGR system continuously coats the intake manifold, intake valves, and turbo compressor wheel with abrasive carbon-coke, progressively reducing airflow and degrading fuel economy. Deleting the EGR system eliminates both failure risks and is one of the most recommended reliability modifications in the Duramax community. Does this kit include the up-pipe? Yes — this is a complete kit that includes the 304 stainless steel passenger-side up-pipe. Many competitors sell the up-pipe separately or omit it entirely, leaving you to source one elsewhere. The iFJF up-pipe is mandrel-bent from thick-wall 304SS and features laser-cut, TIG-welded flanges for perfect fitment. Will this kit cause my truck to go into limp mode? If installed without a supporting ECM tune — yes. The LMM ECM actively monitors the EGR system, and when it detects missing or non-functional EGR components, it will trigger DTCs and may engage reduced-power (limp) mode as a protective measure. A custom tune from a reputable Duramax tuner (using EFILive, HP Tuners, or similar) is mandatory. The tune must disable EGR-related DTCs, set EGR readiness monitors appropriately, and optionally optimize fuel and boost mapping for the improved airflow you'll achieve post-delete. Is this kit compatible with my 2008 GMC Sierra 2500HD? Absolutely. The 2008 GMC Sierra 2500HD with the 6.6L LMM Duramax is a direct-fit application. Both Chevrolet Silverado and GMC Sierra HD trucks from 2007.5–2010 share identical LMM engine architecture, EGR system layout, and exhaust configuration. What's the difference between LMM and LBZ EGR delete kits? The LMM and LBZ use different EGR cooler designs, different up-pipe configurations, and different ECM architectures. The LMM introduced a more complex EGR cooler with additional coolant passages and a revised up-pipe design compared to the LBZ. Components are not interchangeable between the two engine codes. This kit is specifically engineered for the LMM (2007.5–2010) platform. Will deleting the EGR improve my fuel economy? Many Duramax owners report a measurable improvement in fuel economy after EGR deletion — typically 1–3 MPG depending on driving conditions. The improvement comes from two sources: (1) the engine is no longer ingesting hot, oxygen-depleted exhaust gas during cruise, which improves combustion efficiency, and (2) the intake system stays clean over time, preventing the gradual airflow restriction that robs efficiency as carbon builds up. Combined with a well-calibrated tune, fuel economy gains can be significant on highway-driven trucks. Will this kit affect the reliability of my truck? When properly installed with a quality supporting tune, EGR deletion improves long-term engine reliability by eliminating the risk of EGR cooler failure (the #1 cause of catastrophic Duramax engine damage on LMM platforms) and preventing carbon-coke buildup in the intake system. The iFJF components are manufactured from materials selected for durability under diesel operating conditions: 6061-T6 billet aluminum for thermal stability, 304 stainless steel for corrosion resistance, and Viton seals for coolant circuit integrity at sustained high temperatures. ⚠️ Off-Road / Competition Use Only This Duramax LMM EGR delete kit is sold exclusively for off-road, racing, and competition use. The Clean Air Act (42 U.S.C. §7522(a)(3)) expressly prohibits tampering with or removing emissions control devices on motor vehicles. Installation of this product on a vehicle operated on public roads is a violation of federal law and may result in penalties of up to $4,819 per violation. Additionally, state and local regulations may impose further restrictions. This product is not CARB-certified and is not legal for sale or use in California on pollution-controlled motor vehicles. The purchaser and installer assume all liability for compliance with applicable laws. iFJF is not responsible for improper use, installation, or any consequences thereof.

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