Factory-Direct Diesel Filtration for American Trucks, Boats & RVs
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- 📋 IATF 16949 Certified
- ⭐ 4.9★ on Amazon (3,200+ Reviews)
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Factory Direct
No middleman markup. We design, manufacture, and ship from our own facility. Since 2009.
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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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iFJF iFJF 1986-1995 Ford F150 F250 F350 Mustang Trucks EGR Simulator Eliminator / Block Off Plate Kit
$74.58
Shop by Engine
Find the right diesel filter for your truck — Duramax, Cummins, or Powerstroke
Duramax 6.6L
Chevrolet Silverado & GMC Sierra
2500HD/3500HD · 2001–2024
23 Products
2500HD/3500HD · 2001–2024
Cummins 6.7L
Ram 2500/3500 Heavy Duty
Pickup & Chassis Cab · 2007–2024
18 Products
Pickup & Chassis Cab · 2007–2024
Powerstroke
Ford F-250 to F-550 Super Duty
6.0 / 6.4 / 6.7L · 2003–2024
15 Products
6.0 / 6.4 / 6.7L · 2003–2024
Maintenance Guides & Tips
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, by iFJF Direct Fuel Filter Replacement Chevrolet Silverado Suburban Tahoe GMC Yukon XL Sierra 2000-2006 - EASY!
🛒 Parts Used in This Guide 12642623 Fuel Filter Head + 1R-0750 Refit for 2005-2016 Dura $87.99 Shop Now → 1R-0750 Fuel Filter Aluminum Head...
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, by iFJF Direct Norcold 630762 Optical Control Board: Symptoms, Replacement Guide & Fitment for N611/N811
Norcold 630762 Optical Control Board: The #1 Fix When Your N611/N811 Display Dies You walk up to your Norcold RV refrigerator, press the power button,...
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, by iFJF Direct Norcold N811 Not Cooling? How to Reset the Control Board & Replace the Thermistor (Step-by-Step)
Norcold N811 Not Cooling? How to Read Fault Codes, Reset the Control Board & Replace the Thermistor If your Norcold N811 (or older N611) RV...
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, by iFJF Direct UF106 DEF Urea Filter: How to Replace It on DD13 & DD15 (Replaces 4388378)
UF106 DEF Urea Filter: What It Does, How to Replace It, and How It Prevents Derate If you've ever seen "DEF pressure low" or "conversion...
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, by iFJF Tech Team iFJF R12T Fuel Filter/Water Separator Install Guide (10 Mins)
iFJF R12T Fuel Filter/Water Separator Installation Guide The iFJF R12T Fuel Filter/Water Separator (120AT NPT ZG1/4-19) installs in about 10 minutes with basic hand tools...
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, by iFJF Direct LBZ or LMM - DSP 5 Switch - INSTALL & TROUBLESHOOTING
Home › News › How to Install a DSP 5 Switch on Your LBZ or LMM Duramax How to Install a DSP 5 Switch on...
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
R12T Fuel Filter Water Separator
★★★★★
Looks and feels like a quality product
"I ordered the product for my auxiliary fuel tank. I hoped to keep any moister from that tank from clogging up my factory fuel system and filters. Appears to be working well."
— Steve Creager✓ 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
CV52001 Crankcase Ventilation Filter
★★★★★
Awesome
"Pretty easy to do yourself. Fit perfectly would buy again. "
— This is the worst machine✓ 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
CV52001 Crankcase Ventilation Filter
★★★★★
Great quality for half the price!
"Product came in quick with Prime and fit perfectly! Looked up how-to on YouTube. Install took less than 30 min. Reset the perform service light with no issue! Will definitely be buying again when it’s"
— Mine✓ Verified
CV52001 Crankcase Ventilation Filter
★★★★★
Excellent
"Excellent product, I love it, it fits my car perfectly, I buy it oft "
— Belen Bartel✓ Verified