FASS Diesel Fuel Systems & Parts

With over 20 years of manufacturing experience in the diesel fuel industry, FASS Fuel Systems soars miles ahead of the pack with its highly efficient performance filtration products. The brand offers the “cleanest” Fuel Air Separation Systems (FASS) and the “quietest” electric diesel fuel pumps ever made. FASS takes great pride in their state-of-the-art filtration technology that helps maximize engine performance and injectors lifespan. Die-hard engine builders and performance junkies all over the world rely on FASS when it comes to superior diesel parts.

The idea for FASS was born in the early ‘90s when Brad Ekstam decided to build a top-of-the-line fuel/air separation system. In 2003, he started making FASS fuel systems in his own garage, using his knowledge in the anatomy of the ride. Thanks to Brad’s relentless passion and enthusiasm, innovative FASS products instantly earned the respect from diesel gearheads. From its humble beginnings in the garage to modern facilities in Marthasville, MO, FASS has evolved into the world-renowned leader in performance diesel fuel systems. With FASS, you can fuel up your diesel passion, from pickup truck to Class 8.

FASS Diesel Fuel Systems is your trusted choice for performance diesel parts, from high-efficiency fuel filter & water separation systems to cutting-edge fuel pumps, to replacement filters. The brand goes the extra mile with a host of breakthrough features such as FASS Silencing Technology (FST), Performance Radius Cuts (PRC), and Mass Flow Return (MFR). Rely on FASS Fuel Systems products to unleash your diesel beast under the hood while safeguarding your injectors and boosting fuel economy. These second-to-none filtration systems are specially designed to keep air, vapor, and dirt where they belong – out of your fuel. Treat your engine with the cleanest burning fuel possible using the most versatile FASS Fuel Systems Titanium Series. This is the key to huge jumps in horsepower and torque, as well as quick cold weather starts.

If you want to uncork the unbridled power lurking within the hood, FASS Fuel Systems is right up your alley. The brand pushes the limits of design and innovation to give your rev-happy diesel engine the purified fuel it needs to run at its peak for billions of miles to come. FASS air/ fuel filtration systems are just the way to adjust your vehicle's performance from meek to mean while increasing your engine's reliability. The brand stands out for making competition-grade Gerotor specific fuel pumps that last up to 700,000+ miles. When FASS performance pumps and filters work in tandem, you can enjoy the cleanest and the quietest rides ever. They're sure to help lower EGT’s, as well as bring harmful carbon monoxide and carbon dioxide emissions down. FASS diesel products are built with American ingenuity and precision, from bullet-proof strong 6061 T-6 Aircraft quality aluminum. They’re in the league of their own when it comes to astounding operation under the most challenging conditions. Whether it’s a Class 8 hauling Pittsburgh steel or a pickup truck in the cattle country, FASS Diesel Fuel Systems has got you covered with the highest quality parts built to last. At FASS Fuel Systems, they take great pride that their parts are designed, machined, and assembled in the USA. This way they Pledge their allegiance to the Flag of America and guarantee that diesel vehicles powering the industry will get the performance they deserve.