🚀 Just Launched - FASS Drop-In Series Diesel Fuel System - 3.0L Duramax LM2/LZ0

🚀 Just Launched - FASS System Motor Heatsinks

Monitor your FASS Fuel Filter Life with FASS Connect!
Parts Finder

Find Your Parts

FASS Fabrication · Built In Our Shop

We Don'tSource It.We Build It.

Traction bars, radius arms, control arms, and coilover conversions — designed, welded, and powder coated in house for Ram 2500/3500 and Ford Super Duty.

Shop FASS Fabrication → Shop Traction Bars

Popular Brands

View More

Top Sellers

View all

Style Your FASS

With Stryker Offroad's precision-machined filter sleeves and faceplates — designed for customers who want their performance parts to look as good as they perform.

Shop Now!

New Arrivals

View all

Your Favorite System Just Got an Upgrade

All PLUS and No Drop Plus systems now come standard with an all-new Heat Sink. This further extends the life of our proven million-mile motor by lowering the internal temperature by up to 20 degrees.

Shop Now!

Customers are saying

4.68 ★ (149)
Verified
149
21

Washington, Missouri • Off-Road & Diesel Performance Parts

Built for Trucks That Actually Get Used

FASS Motorsports helps truck, Jeep, and UTV owners dial in suspension, steering, armor, lighting, fuel systems, and diesel performance upgrades that actually fit their build.

01

Suspension & Lift Kits

Shop shocks, coilovers, leveling kits, control arms, leaf springs, and complete lift kits for street, tow, and off-road builds.

02

Diesel Performance

Fuel systems, CP3 and injector upgrades, filtration, drivetrain, and engine parts from S&S Diesel, FASS, and the brands that hold up.

03

Real Fitment Help

Not sure what fits your year, make, and model? Our team helps with truck, Jeep, UTV, and diesel fitment before you order.

© 2026 FASS Motorsports. All Rights Reserved.