FASS Duramax Series Information

The FASS Duramax Series Pump is very similar in design to the FASS Dodge Direct Replacement Pump, except it was created for the General Motors Duramax V-8 engine released in their light- and medium-duty trucks. Because Duramax trucks are not built with a stock lift pump that pulls fuel to the truck’s tank, the system constantly introduces air and vapor into the fuel. By installing the FASS Duramax Series Pump, your truck uses this pusher-styled pump to supply fuel to the engine. As a result, the vacuum effect that is naturally created by your truck is mostly eliminated. Consequently, your fuel system will then have significantly reduced air and vapor.

The Duramax Series Pump was designed to flow at approximately 70 Gallons per Hour at 10 PSI. FASS recommends this pump for users that are happy with stock power applications. However, owners with very slight horsepower modifications can also use the Duramax Series Pump. Owners that desire a fuel pump for moderate to extreme power applications for their light-duty truck should explore the FASS Titanium or Platinum Series. 

FASS has made available two models of the FASS Duramax Pump compatible with two different versions of the GM Duramax. The first model is compatible with 6.6L Duramax LB7, LLY, LBZ, LMM 2500, and LMM 3500 from 2001 to 2010.The second model works with the newer 2011-2012 6.6L Duramax LML 2500 and LML 3500.

The FASS Duramax Series Pump will help your machine in conditions that are either extremely cold or hot. By using a heavy-duty motor that delivers a high torque to gear ratio, cold weather starts become seamless. In warmer climates, the Duramax Series Pump's heavy-duty motor has the strength to process B-20 and B-50 fuels. This means that the FASS Duramax Series Pump will operate effectively regardless of the temperature of your environment.

The instruction manual for the Duramax Series Pump recommends using a fuel pressure gauge in order to identify the stage of your fuel filter’s life. Using this gauge will help you prevent engine damage. The manual also mentions that increased fuel flow may create problems with your stock fuel module. Using the included FASS suction tube kit with the Duramax Series Pump can prevent these problems.

The FASS Duramax Series Pump comes standard with a four-year warranty, so long as the manufacturer receives all relevant warranty information during the first 30 days after purchase.

Please see the OC website for the FASS Duramax Series Pump. If you have any questions about the FASS Duramax Series Pump or any other FASS product, feel free to call and speak to a FASS service professional at 714-848-2170.