Fuel (L5P)

  WARNING! This system is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermarket tune an...

  WARNING! This system is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermarket tune an...

Description Our FASS Fuel Systems Bulkhead Fitting and Viton suction tube are designed to mount directly to the fuel tank module and provide an imp...

Description Diesel Fuel 5/8 Inch Fuel Module Suction Tube Kit With Bulkhead Fitting FASS

Description FASS High Output Heater Disk

Description Titanium Series Optional Electric Diesel Fuel Heater Kit FASS

DESCRIPTION  The FASS Drop-In Series Diesel Fuel System was engineered by FASS to be the most effective filtration solution for the L5P Duramax. ...

Description FASS Fuel Systems Diesel Fuel Sump And Suction Tube Upgrade Kit. (STK-5500BO Universal Applications, Ford Powerstroke, GM Duramax and D...

Description FASS Fuel Systems Diesel Fuel Sump With Bulkhead and Suction Tube Kit (STK-5500) Part No: STK-5500 Universal Applications, Ford Powerst...

Description This splitter allows for easy connection if you are utilizing (2) dual FASS Electric Heater Probes (HKS1001).The splitter will work for...

Description The STK-1002 (Suction Tube Kit), machined from 6061 T-6 Billet Aluminum, is a Bulkhead Fitting comprised of a 5/8″ Suction Tube along w...

Description Repower your 2017+ GM 6.6L 2500/3500HD Pickup truck with the Alliant Power AP54820 L5P Duramax Fuel Contamination Kit

Description Installing a FASS Fuel System has NEVER been easier! Their all-new Return Style Fuel Tank Sump Kit only requires a single hole to be dr...

Description Your L5P Duramax is a combination of great qualities from the striking styling, huge towing capability and a great ride. But if you wan...

Description Transform your L5P Duramax into a race-winning powerhouse with our 10mm CP3 Conversion Kit. This kit not only boosts your engine’s hors...