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
Shop by Category
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.
Learn About iFJF
IATF 16949 & ISO 9001
Automotive-grade quality certified. Same standards trusted by global OEM manufacturers.
View Certifications
4.9★ on Amazon
3,200+ verified reviews from diesel & RV owners who trust our quality and value.
Read Amazon ReviewsTrending Now
What shoppers are viewing right now — updated daily from live traffic data
$29.99
$36.99
$55.99
$77.99
$59.99
$47.99
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
-
, by iFJF Direct 62mm Throttle Body Install for Jeep 4.0L: 56mm to 62mm Upgrade Guide
The Jeep 4.0L inline-six is one of the most durable engines ever bolted into a Wrangler, Cherokee, or Grand Cherokee. But from the factory, it...
-
, by iFJF Direct Full Smog Delete 5.8L Windsor Ford Bronco/F-150: What it Takes
🛒 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...
-
, 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...
-
, 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,...
-
, 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...
-
, 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...
Exclusive for Returning Customers
Already Bought From Us?
Welcome back! Reorder your filters, try a new category, or reach out for bulk pricing. Use code LOYAL15 for 10% OFF your next order.
One-time use per customer · For customers with previous orders only
Browse All ProductsWhat Our Customers Say
4.9★ average from 3,200+ verified reviews — Real feedback from real customers
R12T Fuel Filter Water Separator
★★★★★
Fast delivery.
"Great filter for the price."
— oscar haaland✓ 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
★★★★★
good-buy
"look-good"
— Butch Goldthwait✓ Verified
R12T Fuel Filter Water Separator
★★★★★
Perfect
"Works great"
— Elmer McGill✓ Verified
R12T Fuel Filter Water Separator
★★★★★
fast shipping
"great price"
— chris ollis✓ Verified
R12T Fuel Filter Water Separator
★★★★★
Replaced the original to this.
"The original on my cub cadet was a piece of trash, this new one is great! And easy to install."
— Debora✓ Verified