Compare Maximum number of 4 items selected ACDelco Harmonic Balancer - 55574772 Part #: 55574772 Line: ACD ACDelco Harmonic Balancer 1 Year Limited Warranty Balancer Type: Elastomer Insulator Material: Steel Belt Type: Serpentine Bore Type: Press-In Inside Diameter Bore Size (in): 1 Inch Inside Diameter Bore Size (mm): 26mm Pulley Diameter (in): 6-1/16 Inch Pulley Diameter (mm): 153mm Overall Width (in): 3 Inch Overall Width (mm): 76mm Show More Show Less