Keep the lift pump on your 2001-2004 Chevy/GMC 6.6L LB7 Duramax working its best with frequent Fuel Filter replacement. Depending on the application, you can cross-reference fuel filters for enhanced filtration or increased availability. Lift pump fuel filters are available in multiple micron ratings depending on the manufacturer of the pump. Get the filters you need for your AirDog, FASS, Fuelab, or AFE lift pump.