The easiest way to put FASS filtration on an '03-'07 5.9 Cummins Our Drop-In Series System removes air/vapor, water, and debris before they reach the injection system, all with a driveway-friendly install. FASS Fuel Systems is an American manufacturing company specializing in the engineering, design, and production of fuel systems and accessories for diesel vehicles. The name “FASS” stands for Fuel Air Separation System, which is a perfect acronym for the functionality of a FASS system. Great selection of FASS Fuel Systems in stock and available in FASS Titanium Signature Series, the New FASS Drop-In Series, FASS Adjustable Fuel System Series, FASS Dodge DRP Series, and FASS Duramax D-MAX Series. All FASS Fuel Systems ship free. Find your FASS Fuel System on sale and purchase here now! FASS will work with you to create a services plan that fits your needs and budget You provide the direction— we provide the expert service Via informationstjänsten FASS får allmänhet, hälso- och sjukvårdpersonal, apotek, djurägare och djurvårdspersonal alltid tillgång till aktuell och kvalitetssäkrad information om läkemedel If you have an interesting story or interview of special interest to the FASS community tell us about it HERE. © National University of Singapore. All Rights Reserved. FASS stands for Fuel Air Separation System and is a combination diesel fuel lift pump and fuel filtration system. These systems are designed to improve your truck’s fuel mileage, engine performance, and extend the life of your diesel injection system. FASS Motorsports is your 1 source for adventuring, performance and off-road products for Trucks, Jeeps, & Side by Sides (SxS). Shop below for FASS fuel air separation systems with Fass filters, stand-alone fuel pumps, save money with Fass replacement filters, or just miscellaneous accessories. FASS stands for Fuel Air Separation System and is a combination diesel fuel lift pump and fuel filtration system that is designed to improve your diesel truck’s fuel mileage, engine performance, and extend the life of your diesel injection system.