Airdog II-5G 100 GPH Air Fuel Separation Lift Pump System 15-16 6.6L GM Duramax LML PPE-114053120 HPI has 3 standard sizes

HPI has 3 standard sizes to choose from: 5

See our King level tuning if you're prepared for 500+HP and a few transmission parts

while the rear axle tabs are radiused to fit most axles and can be welded to the axle tube or U-bolt bracket

Recessed back for power cable storage

Includes a heavy-duty 5-Ply coupling for strength

Airdog II-5G 100 GPH Air Fuel Separation Lift Pump System 15-16 6.6L GM Duramax LML PPE-114053120 HPI has 3 standard sizesWhy GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and or larger displacement injectors. Even at stock power levels, this insufficient