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.
Learn About iFJF →IATF 16949 & ISO 9001
Automotive-grade quality certified. Same standards trusted by global OEM manufacturers.
View Certifications →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 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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, by William Lee The Benefits of Upgrading to a High-Performance Fuel Filter
Introduction:While standard fuel filters effectively remove contaminants from the fuel, upgrading to a high-performance fuel filter can provide additional benefits for your vehicle. In this...
What Our Customers Say
4.9★ average from 3,200+ verified reviews
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.
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.
L5P Fuel Filter Kit
★★★★★
Saved $100 vs dealership
"Dealership quoted $180 for L5P fuel filter replacement. Bought this kit and did it myself in 30 minutes. For $40 you can't beat it."
— Jack W.
RV Fleet — Bulk Order
★★★★★
Flawless fleet delivery
"Ordered 80 filters for our RV fleet shop. Every single one was consistent quality. Perform just like OEM at half the price. Now our standard supplier."
— Fleet Manager Mike
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.
7.3L Powerstroke Coolant Kit
★★★★★
Must-have for 7.3L trucks
"Wish I'd bought this years ago. My 2002 F350 has 220k miles. Installed in 45 minutes and the first filter caught a ton of crud. Cheap insurance."
— Scott E.