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FASS Brand

255 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 | 2017-2024 GM L5P Duramax Billet Fuel Filter Cap Fass | 2017-2024 GM L5P Duramax Billet Fuel Filter Cap
$99.18
$99.18
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...
FASS | 2011-2014 GM 6.6L Duramax Titanium Signature Series Fuel System 165GPH FASS | 2011-2014 GM 6.6L Duramax Titanium Signature Series Fuel System 165GPH
$656.10
$656.10
A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn’t come with a factory lift pump like other diesels. This requires your CP3 ...
FASS | 1998.5-2004.5 Dodge Ram 5.9 Cummins Titanium Signature Series Fuel System 165GPH FASS | 1998.5-2004.5 Dodge Ram 5.9 Cummins Titanium Signature Series Fuel System 165GPH
$647.10
$647.10
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 | 2017-2019 GM 6.6L L5P Duramax 140GPH No Drop Titanium Fuel System FASS | 2017-2019 GM 6.6L L5P Duramax 140GPH No Drop Titanium Fuel System
$782.10
$782.10
Please Note: This Fuel System REQUIRES aftermarket tuning to be compatible. Installing a Titanium Signature Series Fuel System has never been easier, or more affordable. Designed to simplify instal...
FASS | Filter Pack Contains (2) XWS3002 & (2) PF3001
$90.92
$90.92
Part No: FP3000Superseded Part No: FILTER PACK Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains two (2) (XWS3002) Extreme Water Separators and two (2) (PF3001) Pa...
FASS | 2015-2016 GM Duramax 6.6 Titanium Signature Series Fuel System 165GPH FASS | 2015-2016 GM Duramax 6.6 Titanium Signature Series Fuel System 165GPH
$656.10
$656.10
A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn’t come with a factory lift pump like other diesels. This requires your CP4 ...