ACDelco 19540389 Crankshaft Harmonic Balancer for 6.6L Diesel

The ACDelco 19540389 Harmonic Balancer Assembly, also called a crankshaft balancer or crankshaft pulley damper, is built for 6.6L diesel engines. It bolts to the engine's crankshaft and helps reduce the vibrations the crankshaft produces.

Key Features:

• Helps reduce vibration from the crankshaft
• Works as the pulley for the accessory drive belts
• GM Genuine Parts design, engineered and tested to GM standards
• Some GM Genuine Parts were formerly sold as ACDelco GM Original Equipment (OE)

A new harmonic balancer assembly replaces a worn unit and restores crankshaft vibration damping and accessory belt drive. Removing the balancer takes a special puller and some mechanical knowledge.