FASS Flow Enhancer D-Max Diesel Lift Pump for 11-16 GM Duramax 6.6L DMAX-7002

diesel duramax fass flow gm lift max pump

FASS FUEL SYSTEMS DURA-MAX DIESEL LIFT PUMP FOR 2011-2016 GM DURAMAX 6.6L (DMAX-7002). When the factory CP3/CP4 injection pump pulls fuel under a vacuum it can introduce air and vapor into your fuel, which can lead to injector failure.