The fuel injection pump drive gear, GM part number 97226128, mounts on the CP3 high-pressure injection pump shaft and meshes with the engine's gear train to drive the pump on the 6.6L LB7 and LLY Duramax. It fits 2001-2005 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks. Because the Duramax uses a gear-driven pump, a worn, chipped or damaged gear can cause gear noise, poor pump drive and, in severe cases, a no-start. Replace it when the original shows tooth damage or wear, or when you install a pump that does not come with a gear. The pump gear nut and gasket are sold separately.
Key Features
- GM part number 97226128
- Drive gear for the CP3 injection pump
- Fits the 2001-2005 LB7 and LLY Duramax
- Factory tooth profile and fit
- Uses GM pump gear nut 94012012 and gasket 94011700 (sold separately)
Benefits
A new factory gear restores quiet, positive drive to the injection pump. When installing a pump, see the 2001-2004 CP3 Fuel Injection Pump Install Gasket Kit or the 2004.5-2005 CP3 Fuel Injection Pump Install Gasket Kit. For 2006-2010 LBZ and LMM trucks, use the 2006-2010 Fuel Injection Pump Drive Gear.
Fitment
Fits 2001-2005 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L LB7 or LLY Duramax diesel. It does not fit 2006 and newer LBZ or LMM engines.
What's Included
- (1) GM fuel injection pump drive gear, 97226128
- Pump gear nut (GM 94012012) and gasket (GM 94011700) sold separately