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)
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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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Pool Parts
Factory-direct pool replacement parts for Intex, Hayward, Pentair, Polaris & more. Bulk orders welcome.
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Maintenance Guides & Tips
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, by iFJF Direct Ford 6.7 Powerstroke Diesel 2011-2016 Fuel Filters Replacement How-To
How to Replace Fuel Filters on a Ford 6.7L Powerstroke Diesel (2011–2016) If you own a 2011–2016 Ford F-250 or F-350 with the 6.7L Powerstroke...
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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. NAPA 3960 compatible.
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, by Shopify API Diesel Fuel Filter Maintenance — When to Replace Your Fuel/Water Separator (Duramax, Powerstroke & Cummins)
Diesel Fuel Filter Maintenance — When to Replace Your Fuel/Water Separator (Duramax, Powerstroke & Cummins) Is your diesel truck hard-starting, losing power, or throwing a...
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, by iFJF Direct FASS vs AirDog: Complete Duramax Lift Pump Installation Guide
Complete step-by-step guide to installing a FASS or AirDog lift pump on 2001-2010 Duramax trucks. Covers LB7, LLY, LBZ, LMM engines with tools list, wiring...
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, by iFJF Direct S3213 Upgrade Guide: Why the Replaceable Filter Pays for Itself in 2 Services
Compare the old sealed S3213 vs the new replaceable-element design. Real cost data shows the upgraded version pays for itself by the second service —...
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, by iFJF Top 5 Diesel Fuel Filter Housing Problems (And How to Fix Them)
Why Your Fuel Filter Housing Deserves Your Attention Right Now If you own a diesel truck — whether it's a Duramax, Powerstroke, or Cummins —...
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
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.✓ 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
★★★★★
Awesome
"Pretty easy to do yourself. Fit perfectly would buy again. "
— This is the worst machine✓ 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
Engine Oil Filter for Ram 3.0L
★★★★★
These worked great
"This is the oil filter for a 2015 ecodiesel v6 it fits and is cheaper than mopar"
— B✓ 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