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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Maintenance Guides & Tips
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, by iFJF Direct Diesel Fuel Filter Replacement: The Complete Guide for Cummins, Powerstroke & CAT Engines
Diesel Fuel Filter Replacement: The Complete Guide for Cummins, Powerstroke & CAT Engines Your diesel engine's fuel filter is the cheapest insurance policy you'll ever...
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, by iFJF Team Duramax 6.6L Oil Change: Complete DIY Guide for Every Generation (2001–2024)
Complete Duramax oil change guide for LB7, LLY, LBZ, LMM, LML, and L5P engines. Includes oil capacity chart, filter recommendations, and 3 maintenance items to...
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, by iFJF Direct How-to replace & rebuild the diesel fuel filter head on a Duramax engi
How to Replace & Rebuild the Duramax Fuel Filter Head — Complete Step-by-Step Guide If your Duramax is leaking fuel near the filter housing, struggling...
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, by iFJF Direct Leveling Kit vs Lift Kit: What Your Diesel Truck Really Needs
Leveling kit or lift kit? We break down cost, installation, tire clearance, ride quality, and towing impact so you can make the right call for...
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, by iFJF Direct 2001-2016 Duramax Diesel Fuel Filter Replacement: Complete DIY Guide (With NAPA 3960)
Step-by-step Duramax fuel filter replacement guide for 2001-2016 6.6L engines. Covers inner fender removal, water sensor disconnect, O-ring lubrication, and priming procedure.
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, by iFJF Team Duramax Fuel Filter Housing: Complete Compatibility & Replacement Guide (2001–2024)
Complete guide to Duramax fuel filter housing compatibility, replacement, and upgrades for all generations from 2001 LB7 through 2024 L5P. Covers OEM cross-reference numbers, common...
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
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
Engine Oil Filter for Ram 3.0L
★★★★★
Easy to install
"The filter fit fine changing my oil on my 2018 RAM ecodiesel engine."
— MRG✓ Verified
Fuel Water Separator
★★★★★
Great upgrade from stock
"Upgraded from my old Racor unit and the difference is night and day. Aluminum housing feels solid, no more rust concerns. The transparent bowl is a game changer."
— Steven R.✓ Verified
Cummins Fuel Water Separator
★★★★★
Beats the dealership every time
"Running these on my 2018 Ram 3500 Cummins. Change them every other oil change and they catch a shocking amount of water. Engine runs smoother with clean fuel."
— Chris T.✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Awesome
"Pretty easy to do yourself. Fit perfectly would buy again. "
— This is the worst machine✓ Verified
DEF Pump Filter Kit
★★★★★
Fixed DEF warning instantly
"Was getting the 'DEF system service required' warning. Swapped this filter kit and cleared the codes — hasn't come back in 3 weeks."
— Tom P.✓ Verified