Enhance the fuel delivery to your 2004.5-2010 GM 6.6L Duramax with the Fleece Powerflo Lift Pump. The Fleece Powerflo Lift Pump functions as a replacement style lift pump that installs directly into the fuel tank. This direct replacement can support up to 800HP. No cutting holes, no noisy frame mounted pumps, and no quarter-tank issues thanks to the active fill bucket design.Dual Gerotor DesignThe Powerflo Lift Pump has two OEM quality gerotor pumps to increase flow and reliability. Seamless IntegrationThe active fill bucket eliminates the need to install a fuel tank sump or straw. This pump offers outlet and returns threaded to accept a -8 ORB fitting (3/4" -16 thread)Backed by a Lifetime WarrantyInstall Instructions