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
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
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✓ 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
★★★★★
Good price
"I have used this product for quite some time. Works well and good price"
— M. C. Koch✓ 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
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