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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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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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 FS1098 Fuel Water Separator Replacement for Cummins B6.7 & ISL8.9: Torque Specs, O-Ring Tricks, and What Actually Goes Wrong
FS1098 Fuel Water Separator Replacement for Cummins B6.7 & ISL8.9: Torque Specs, O-Ring Tricks, and What Actually Goes Wrong I've changed more fuel water separators...
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, by iFJF Direct Club Car DS Front Shock Absorber Replacement — 1014235 DIY Install Guide (1981–2013 Models)
How to Tell Your Club Car DS Shocks Are Worn Out The Club Car DS is arguably the most durable golf cart platform ever built,...
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, by iFJF Direct FS1098 Fuel Water Separator Install Guide for Cummins B6.7 & ISL8.9 — Torque Specs, Cross-Reference & DIY Steps
Why Your Cummins Engine Needs a Quality Fuel Water Separator If you own a medium-duty or heavy-duty truck powered by a Cummins B6.7, ISB6.7, L9,...
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, by iFJF Direct GF652/FF5026 Fuel Filter Swap on 1988-2006 GM Trucks: 20 Minutes, One Wrench, No Dashboard Lights
GF652/FF5026 Fuel Filter Swap on 1988-2006 GM Trucks: 20 Minutes, One Wrench, No Dashboard Lights If your 88-06 GM truck stumbles on acceleration, takes longer...
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, by iFJF Direct Club Car DS Front Shock Replacement: When Your Golf Cart Rides Like a Lumber Wagon
Club Car DS Front Shock Replacement: When Your Golf Cart Rides Like a Lumber Wagon A worn-out set of front shocks on a Club Car...
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, by iFJF Direct GM 4.2L Atlas Serpentine Belt Replacement: 6PK2320 DIY Guide for Trailblazer, Envoy & Rainier
What Is the 6PK2320 Serpentine Belt? The 6PK2320 is a 6-rib serpentine belt measuring 91.34 inches (2,320 mm) in effective length, built to EPDM (ethylene...
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Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
CV52001 Crankcase Ventilation Filter
★★★★★
Excellent
"Excellent product, I love it, it fits my car perfectly, I buy it oft "
— Belen Bartel✓ Verified
Fuel Filter — Cat / Cummins
★★★★★
Fleet-tested, fleet-approved
"We run 12 trucks with Cummins ISX engines. Switched to iFJF filters 6 months ago. Zero fuel system issues since. The cost savings over Fleetguard are substantial."
— Truck Shop Dave✓ Verified
R12T Fuel Filter Water Separator
★★★★★
Best upgrade for my boat
"Excellent product, installed easily and does not leak. I can tell a huge difference in the way my outboard runs. The problems, missing and sputtering I thought were coming from water in the gas are completely gone. I would recommend this addition to anyone with a boat, no matter what size outboard."
— GG 1✓ Verified
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
R12T Fuel Filter Water Separator
★★★★★
Fast delivery.
"Great filter for the price."
— oscar haaland✓ Verified
R12T Fuel Filter Water Separator
★★★★★
good-buy
"look-good"
— Butch Goldthwait✓ Verified