Factory-Direct Diesel Filtration for American Trucks, Boats & RVs
Save 30-50% vs Dealership — IATF 16949 Certified Manufacturer
- 🏭 20+ Years Manufacturing
- 📋 IATF 16949 Certified
- ⭐ 4.9★ on Amazon (3,200+ Reviews)
- 💰 Factory-Direct Pricing
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Why Choose iFJF Direct?
More than a store — we're the manufacturer.
Factory Direct
No middleman markup. We design, manufacture, and ship from our own facility. Since 2009.
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IATF 16949 & ISO 9001
Automotive-grade quality certified. Same standards trusted by global OEM manufacturers.
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4.9★ on Amazon
3,200+ verified reviews from diesel & RV owners who trust our quality and value.
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Shop by Engine
Find the right diesel filter for your truck — Duramax, Cummins, or Powerstroke
Duramax 6.6L
Chevrolet Silverado & GMC Sierra
2500HD/3500HD · 2001–2024
23 Products
2500HD/3500HD · 2001–2024
Cummins 6.7L
Ram 2500/3500 Heavy Duty
Pickup & Chassis Cab · 2007–2024
18 Products
Pickup & Chassis Cab · 2007–2024
Powerstroke
Ford F-250 to F-550 Super Duty
6.0 / 6.4 / 6.7L · 2003–2024
15 Products
6.0 / 6.4 / 6.7L · 2003–2024
Maintenance Guides & Tips
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, by iFJF Direct iFJF Bluetooth Kill Switch vs ISINFLASH vs Traditional Mechanical: Which Anti-Theft Solution Actually Stops Thieves in 2026?
iFJF Bluetooth Kill Switch vs ISINFLASH vs Traditional Mechanical: Which Anti-Theft Solution Actually Stops Thieves in 2026? Vehicle theft in the United States hit 1,020,729...
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, by iFJF Direct FASS vs AirDog Lift Pumps: Which Duramax Fuel System Upgrade Actually Saves Your CP4 in 2026?
FASS vs AirDog Lift Pumps: Which Duramax Fuel System Upgrade Actually Saves Your CP4 in 2026? If you own a 2001–2016 Chevy or GMC Duramax...
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, by iFJF Direct Bluetooth Battery Kill Switch: iFJF 250A vs Traditional Mechanical vs ISINFLASH — Which Anti-Theft Solution Actually Works?
Bluetooth Battery Kill Switch: iFJF 250A vs Traditional Mechanical vs ISINFLASH — Which Anti-Theft Solution Actually Stops a Thief? Car theft in North America hit...
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, by iFJF Direct FASS vs AirDog: Which Diesel Lift Pump Actually Makes Sense for Your Duramax?
FASS vs AirDog: The Diesel Lift Pump Decision That Actually Matters Here's the deal. Your Duramax came from the factory with a CP4 high-pressure fuel...
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, by iFJF Direct iFJF EGR Simulator Eliminator vs Block-Off Plate: Which One Does Your Ford Actually Need?
EGR Simulator Eliminator vs. Block-Off Plate: Stop Guessing — Here's What Your Ford Actually Needs If you own a 1986–1995 Ford F-150, F-250, or Bronco...
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, by iFJF Direct iFJF Billet Aluminum vs OEM Plastic Fuel Filter Cap: L5P Duramax Comparison & Why It Matters
Why Your L5P's Plastic Fuel Filter Cap Is a Ticking Time Bomb If you own a 2017–2026 Chevy Silverado HD or GMC Sierra HD with...
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
R12T Fuel Filter Water Separator
★★★★★
Best upgrade for my boat
"Excellent product, installed easily and does not leak. I can tell a huge difference in the way my outboard runs. The problems, missing and sputtering I thought were coming from water in the gas are completely gone. I would recommend this addition to anyone with a boat, no matter what size outboard."
— GG 1✓ Verified
Engine Oil Filter for Ram 3.0L
★★★★★
These worked great
"This is the oil filter for a 2015 ecodiesel v6 it fits and is cheaper than mopar"
— B✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★☆
The replacement will take about 30 minutes
"This product works perfectly easy to install fit just like it was a Chrysler product "
— Marco✓ Verified
R12T Fuel Filter Water Separator
★★★★★
Looks and feels like a quality product
"I ordered the product for my auxiliary fuel tank. I hoped to keep any moister from that tank from clogging up my factory fuel system and filters. Appears to be working well."
— Steve Creager✓ Verified
Powerstroke Oil Filter
★★★★★
OEM quality without OEM price
"Been using these on my 2015 F350 6.7L for 3 oil changes now. Cut open the first one after 5K miles — filter media was intact and clean. No bypass valve issues."
— Dave H.✓ Verified
Air Filter — Duramax 6.6L
★★★★★
Noticeable improvement
"Put this in my 2019 Silverado 2500HD. Better throttle response and seeing about 1.5 MPG gain on the highway. The old filter was way dirtier than I thought."
— Ron P.✓ Verified