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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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 How to Install a Bluetooth Battery Kill Switch on Your Diesel Truck: Complete Step-by-Step DIY Guide with App Pairing
Step-by-step DIY guide to install a Bluetooth battery kill switch on diesel trucks, RVs, and UTVs. Includes wiring, Bluetooth pairing, app setup, and troubleshooting.
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, by iFJF Direct How To: Ram 6.7L Cummins Change BOTH Fuel Filters
🛒 Parts Used in This Guide 6.7L Cummins Fuel Filter & Water Separator Kit for Ram 2500 $36.00 Shop Now → 68157291AA 68436631AA Fuel Filter...
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, by iFJF Direct 400-524 Throttle Body Spacer Review: 1999-2004 Mustang GT 4.6L & Crown Victoria — Does It Really Work?
Complete guide to the 400-524 throttle body spacer for 1999-2004 Mustang GT 4.6L V8 & 1996-2008 Crown Victoria. Real dyno results, installation walkthrough, video guides,...
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, by iFJF Direct Bluetooth Battery Kill Switch vs. Traditional RF Remote: Why Smartphone App Control Is the Upgrade Your Diesel Truck, RV, or UTV Needs in 2026
Bluetooth kill switch vs RF remote vs manual disconnect — complete comparison guide. Learn why app-controlled battery disconnects offer better security, range, and convenience for...
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, by iFJF Direct How to Replace the Serpentine Belt on a 5.9 & 6.7L Cummins — Complete DIY Guide
How to Replace the Serpentine Belt on a 5.9 & 6.7L Cummins — Complete DIY Guide Published: July 21, 2026 | Category: Engine Maintenance | ...
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, by iFJF Direct Golf Cart Wheel Covers: Chrome Hub Caps Installation & Buying Guide for EZGO, Club Car, Yamaha
Complete guide to upgrading your golf cart with 8-inch chrome wheel covers. Universal fit for EZGO, Club Car, and Yamaha. 15-minute no-tool installation, chrome care...
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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
★★★★★
Simple
"Small compact easy, Great product"
— GRM✓ Verified
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
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
CV52001 Crankcase Ventilation Filter
★★★★★
Excellent
"Excellent product, I love it, it fits my car perfectly, I buy it oft "
— Belen Bartel✓ Verified
R12T Fuel Filter Water Separator
★★★★★
good-buy
"look-good"
— Butch Goldthwait✓ 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