Damper Drill Pin Kit - Chevy/GM Duramax

The Damper Drill Pin Kit – Chevy/GM Duramax is a precision tool assembly engineered for technicians and engine builders working on Duramax diesel platforms. This drill fixture addresses the critical task of accurately positioning and drilling the crank pin on Duramax engines, eliminating guesswork and ensuring proper bore alignment. Whether you're performing harmonic damper installation, rebuilding a rotating assembly, or servicing crankshaft components, this kit provides the locating accuracy required for professional-grade diesel engine work.

Constructed from durable steel, the Damper Drill Pin Kit delivers the rigidity and dimensional stability necessary for precision drilling operations on cast iron and forged crankshaft materials. The kit includes the drill fixture body, specialized crank pin locating pin, and hardened steel drill bit and hardware—all designed to work together as an integrated system. By maintaining exact concentricity between the damper bore and crank pin centerline, this tool prevents eccentric loading and vibration issues that can compromise engine balance and component longevity.

Diesel technicians, machine shops, and engine rebuild facilities will find this kit indispensable for LB7, LLY, LBZ, and LMM Duramax engines where precision crankshaft work is non-negotiable. Compact at 5.75 × 0.75 × 9.25 inches and weighing just 0.8 lbs, it integrates easily into any shop environment. Installation is straightforward: secure the fixture to the crankshaft, use the locating pin to establish the correct bore position, and drill with the included bit and hardware for repeatable, spec-accurate results every time.