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FASS Diesel Fuel Systems.

FASS Diesel Fuel Systems are the number one preferred Fuel Air Separation System selected for use by Pickup and Class 8 owners the world over. FASS Systems are designed to eliminate Air & Vapor trapped in diesel fuel. Our Titanium Series is the most versatile FASS System ever made, and it provides your engine with the cleanest burning fuel possible. Delivering purified fuel without Air & Vapor increases lubricity, which provides extended injector life and maximizes the performance of your engine. FASS products are designed, manufactured, and assembled right here in the United States and we pride ourselves on providing a superior product and amazing customer service. To learn more about our diesel fuel filters, diesel fuel pump, or to just find your local FASS fuel system dealers contact us today!

Fuel Pumps

Fuel Air Separation Systems

Replacement Filters

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FASS Craftsmanship

FASS Diesel Fuel Systems are engineered, manufactured, and assembled in the U.S.A., and we wouldn’t have it any other way. Diesel Performance Products aren’t just an accessory; they are a way of life; As is the reliability of an American Made product. FASS provides the cleanest fuel to the vehicles powering the infrastructure of our great nation, whether it’s a Class 8 Semi hauling Pittsburgh Steel or a Diesel Pickup in cattle country, FASS is built to last. Constructed from 6061 T-6 Aircraft Quality Aluminum, and boasting such proprietary features as FASS Silencing Technology (FST), Performance Radius Cuts (PRC), and Mass Flow Return (MFR), FASS is truly a step above the rest, in both cutting edge technology and quality.

Materials

Manufactured

Designed

Assembled

Research & Development

Increase Lubricity
Save Injectors
Increase Torque

FASS Diesel vs. Competition

How it Works

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