Factory-Direct Diesel Filtration for American Trucks, Boats & RVs
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- 📋 IATF 16949 Certified
- ⭐ 4.9★ on Amazon (3,200+ Reviews)
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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 Shopify API R12T vs R12H Fuel Water Separator: Real Customer Review (20K+ Views) + Installation Guide
A real iFJF customer's 20,000-view YouTube review of the R12T fuel water separator — installed on a 1978 Jeep in under 10 minutes. Full walkthrough,...
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, by William Lee Duramax 6.6L L5P Fuel Filter Replacement: Complete Step-by-Step Guide
Duramax 6.6L L5P Fuel Filter Replacement: Complete Step-by-Step Guide Last updated: June 4, 2026 The Duramax 6.6L L5P diesel engine — found in 2017-2020 Chevrolet...
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, by iFJF Team Ram 6.7L Cummins Fuel Filter Replacement: Complete Step-by-Step Guide (2013–2018)
Complete guide to replacing both fuel filters on 2013-2018 Ram 2500/3500/4500/5500 6.7L Cummins. Front (68157291AA) + Rear (68197867AA) step-by-step with CP4.2 pump protection tips.
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, by iFJF Direct Duramax L5P Fuel Filter Replacement: Why the OEM Plastic Cap Fails (and How to Fix It Forever)
The 2017-2020 L5P Duramax fuel filter cap is a known failure point. Our guide explains why the OEM plastic cap cracks, how a 6061-T6 billet...
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, by William Lee Complete Diesel Truck & RV Maintenance Schedule 2026: Air, Oil & Fuel Filter Guide
Complete Diesel Truck & RV Maintenance Schedule 2026: Air, Oil & Fuel Filter Guide Keeping your diesel truck or RV in peak condition isn't just...
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, by William Lee Cummins Onan RV Generator Maintenance: Complete Oil Filter & Spark Plug Replacement Guide
Complete guide to maintaining your Cummins Onan RV generator — oil filter changes, spark plug replacement, and full maintenance schedule.
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
Fuel Filter — Cat / Cummins
★★★★★
Fleet-tested, fleet-approved
"We run 12 trucks with Cummins ISX engines. Switched to iFJF filters 6 months ago. Zero fuel system issues since. The cost savings over Fleetguard are substantial."
— Truck Shop Dave✓ Verified
EGR Delete Kit — Duramax LBZ
★★★★★
Clean fit, immediate gains
"Installed on my 2007 Silverado Classic. Everything lined up perfectly. Noticeably better throttle response and about 2mpg improvement on the highway."
— Jay W.✓ Verified
Duramax Fuel Filter
★★★★★
Perfect fit, great value
"Swapped both filters on my 2018 L5P in under 20 minutes. These match OEM spec exactly and cost a fraction of what the dealer charges. Stocked up on a 6-pack for future changes."
— Mike D.✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Awesome
"Pretty easy to do yourself. Fit perfectly would buy again. "
— This is the worst machine✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Excellent
"Excellent product, I love it, it fits my car perfectly, I buy it oft "
— Belen Bartel✓ 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