Description Genuine OEM GM 12pt Harmonic Balancer Bolt GM # 97329601 This harmonic damper bolt fits all GM and Chevrolet 6.6L Duramax Engines from 2001-2026. Including LB7, LLY, LBZ, LMM, LML, LGH, L5P, and L5D. It has been updated from the original 6-point design to a more robust 12-point design for superior grip to help prevent slippage during the installation process. This is a torque to yield (TTY) bolt, meaning that it should be replaced whenever it is removed. Features: Updated 12pt Head Design OEM Direct Replacement Part – Ensures Exact Fitment High strength construction
