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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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 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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, by iFJF Direct Above Ground Pool Plumbing Parts Explained: Valves, Unions, and Fittings Guide
Guide to above-ground pool plumbing parts: plunger valves, multiport valves, check valves, and pipe holders. Learn how each component works and when to replace them.
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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 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
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
L5P Fuel Filter Kit
★★★★★
Saved $100 vs dealership
"Dealership quoted $180 for L5P fuel filter replacement. Bought this kit and did it myself in 30 minutes. For $40 you can't beat it."
— Jack W.✓ Verified
Duramax Fuel Filter
★★★★★
Perfect fit, great value
"Swapped both filters on my 2018 L5P in under 20 minutes. These match OEM spec exactly and cost a fraction of what the dealer charges. Stocked up on a 6-pack for future changes."
— Mike D.✓ 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
Powerstroke Oil Filter
★★★★★
OEM quality without OEM price
"Been using these on my 2015 F350 6.7L for 3 oil changes now. Cut open the first one after 5K miles — filter media was intact and clean. No bypass valve issues."
— Dave H.✓ Verified