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 Team RV Awning Sun Shade Review: iFJF 9'x7' Black Mesh Screen — 5-Minute Install, Instant Privacy & UV Protection
We pulled into Carolina Pines at high noon. Dashboard read 101 degrees. The kind of heat where the asphalt shimmers and your flip-flops feel like...
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, by iFJF Direct iFJF R12T vs Genuine Racor 120A Fuel Filter: A Real Tractor Owner Tears Them Apart
📌 Bottom Line Up Front After a complete side-by-side tear-down, the iFJF R12T matches or exceeds the genuine Racor 120A in build quality, dimensions, and...
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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 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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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
Engine Oil Filter for Ram 3.0L
★★★★★
Good price
"I have used this product for quite some time. Works well and good price"
— M. C. Koch✓ Verified
RV Water Heater Thermostat
★★★★★
Fixed our camper's hot water
"Our Atwood water heater kept tripping the ECO. Swapped this thermostat assembly in 15 minutes with basic tools. Water heats perfectly now. Saved $200 vs a mobile RV tech."
— Karen S.✓ 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
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
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.✓ 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