Fass Fuel Systems
100.00% Positive (10 ratings)
Fass Fuel Systems
Based in Marthasville, Missouri, FASS Fuel Systems is a leading American manufacturer specializing in diesel fuel air separation and filtration technology. Their name—Fuel Air Separation System (FASS)—reflects their core innovation: removing air, vapor, and contaminants from diesel fuel before it reaches the engine.
By improving fuel quality, FASS systems increase horsepower, extend injector and pump life, boost fuel economy, and ensure more consistent engine performance. Their product line includes lift pumps, filtration systems, and accessories designed for light, medium, and heavy-duty diesel trucks, as well as agricultural and marine applications.
All FASS products are proudly manufactured in the USA using high-grade materials and precision machining. Each unit undergoes rigorous testing to meet exacting performance and durability standards, ensuring it can handle the toughest real-world conditions.
Trusted by long-haul truckers, farmers, fleets, and performance diesel enthusiasts, FASS Fuel Systems combines American engineering excellence with a commitment to quality manufacturing—helping keep diesel engines running stronger, cleaner, and longer.
FASS Fuel Systems engineers and manufactures high-performance diesel fuel pumps and filtration systems in the USA. Built for durability and efficiency, their products improve engine performance, extend component life, and are trusted by truckers, farmers, and diesel enthusiasts nationwide.
Country of origin label displayed on our products
Business Certifications
Products coming soon...