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FASS Brand

256 products
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. Our diesel fuel pump and diesel fuel filters are made in America in order to provide complete customer satisfaction. Regardless of the vehicle you drive, and how you power your life, FASS diesel fuel systems provide the cleanest fuel in order to extend the life of your favorite truck
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FASS | Particulate Filter
$22.00
$22.00
FASS FUEL SYSTEMS PF-3001 PARTICULATE FILTER Our new particulate filter is rated at 144 microns. the 144 micron particulate filter on the suction side will drastically reduce cavitation, increase f...
FASS | Extreme Water Separator
$31.00
$31.00
Fass Fuel Systems XWS-3002 Extreme Water Separator Our new more efficient Extreme Water Separator is rated at 2 microns absolute. The reason our water separator no longer drain is because the filte...
FASS | 2001-2010 GM 6.6L Duramax Titanium Signature Series Fuel System 165GPH FASS | 2001-2010 GM 6.6L Duramax Titanium Signature Series Fuel System 165GPH
$729.00
$729.00
A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax 6.6L diesel engine, this is because your Duramax doesn’t come with a factory lift pump like other diesels. This requires your CP3...
FASS | 2019-2024 Dodge Ram 6.7L Cummins (W/ CP4 Recall) Drop-In Series Fuel Filter System FASS | 2019-2024 Dodge Ram 6.7L Cummins (W/ CP4 Recall) Drop-In Series Fuel Filter System
$479.00
$479.00
Installation of this kit on a cab and chassis may require modifications. Drop-In Fuel Systems are a plug-and-play filtration upgrade and are not compatible with our Fuel Sump Kit. No additional ite...
FASS | 2005-2018 & 2021-2022 Dodge Ram 5.9L / 6.7L Cummins Titanium Signature Series Fuel System 100GPH FASS | 2005-2018 & 2021-2022 Dodge Ram 5.9L / 6.7L Cummins Titanium Signature Series Fuel System 100GPH
$699.00
$699.00
The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top performing, longest lasting and most reliable aftermarket filtration system in the diesel indus...
Fass | 2017-2024 GM L5P Duramax Billet Fuel Filter Cap Fass | 2017-2024 GM L5P Duramax Billet Fuel Filter Cap
$110.20
$110.20
The OEM plastic fuel filter cap on your L5P Duramax is susceptible to rounding off when replacing the water separator and cracking during extreme cold weather conditions. Upgrade your OEM plastic f...