ATP Harmonic Balancer - 102246 Part #: 102246 Line: ATP ATP Harmonic Balancer Limited Lifetime Warranty Material: Cast Iron Groove Count: 1, 1 Hardware Included: No Belt Type: Serpentine Pulley Diameter (in): 5-7/8, 6-1/4 Inch Degree Markings Included: Yes Number Of Bolt Holes: 6 Bore Type: Smooth Number of Integrated Pulleys: 2 Balancer Type: OE Replacement Balancer Style: Grooved New Keyway Included: No Inside Diameter Bore Size (in): 1-5/16 Inch Inside Diameter Bore Size (mm): 34mm Show More Show Less