Shop OEM General Motors Part # 12721722 (12670255). Starter Motor. 6.6 liter diesel. 6.6 LITER TURBO DIESEL. All Models; 6.6L. Express, Savana. Silverado, Sierra; 6.6L. Starter Motor -

Starter Motor.
A device, power by electricity, pneumatic, or hydraulics, used to rotate / crank a vehicle's engine as to initiate the engine's operation under its own power. Part numbers are for remanufactured Starter assemblies, Contact local dealer for possible core charge and exchange information. Reman.

Starter Motor

6.6 liter diesel. 6.6 LITER TURBO DIESEL. All Models; 6.6L. Express, Savana. Silverado, Sierra; 6.6L.
Starter Motor - Repair or Replace
You turn the key, hear a loud sharp CLICK, and your engine doesn't crank—sounds like your may need its starter replaced. If any of these symptoms sound familiar, contact our service department.