Description
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
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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.
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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.
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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.
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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.
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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.
