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 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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, 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
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.✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Excellent
"Excellent value for the price This filter is a cost-effective alternative to more expensive OEM options, making regular maintenance more affordable. 🔧 Good fit and compatibility It installs easily an"
— Oscar Vargas✓ 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
Engine Oil Filter for Ram 3.0L
★★★★★
Much cheaper than parts store filters
"These filters are typically half the price of what can be found at an auto parts store. I installed two so far and had a look at them after the oil changes. They were still in one piece and in good sh"
— D. K.✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Great!
"Works great. This is our second one. This installed easily and works like it should. Good price as well! "
— B West✓ Verified