CR2 Duramax Crankshaft Pin Kit

Duramax Crankshaft Pin Kit

Repair a damaged crankshaft alignment pin without removing the crankshaft or machining a keyway with the Duramax Crankshaft Alignment Pin Repair Kit. Designed to address factory harmonic balancer alignment pins that can shear under high-RPM operation, this kit provides a practical repair solution for restoring proper harmonic balancer alignment while keeping the engine installed in the vehicle.

The repair requires only the removal of the radiator and intercooler for access. After extracting the broken factory alignment pin, the harmonic balancer is repositioned 180 degrees from its original pin location. The included drill jig guides the drilling of a new hole approximately 3/4" to 1" deep, allowing the hardened roll pin to be installed. The harmonic balancer is then secured using the OEM crankshaft bolt and washer, tightened to factory torque specifications.

Key Features

• Repairs sheared harmonic balancer alignment pins
• Addresses alignment pin failures associated with high-RPM operation
• Allows repairs without removing the crankshaft from the engine
• Eliminates the need to machine a crankshaft keyway
• Can be installed with the engine remaining in the vehicle
• Requires removal of the radiator and intercooler for access
• Repositions the harmonic balancer 180 degrees from the factory pin location
• Included drill jig guides accurate placement of the replacement pin hole
• Requires drilling a new hole approximately 3/4" to 1" deep
• Hardened roll pin provides a replacement alignment point
• Uses the OEM crankshaft bolt and washer for final installation

Benefits

The Duramax Crankshaft Alignment Pin Repair Kit provides a convenient alternative to extensive engine disassembly and crankshaft machining. By allowing the replacement alignment pin to be installed with the engine in place, the kit helps reduce repair complexity, labor time, and downtime while restoring the harmonic balancer's alignment.

What's Included

• Drill Jig
• Hardened Roll Pin

Installation Notes

• Remove the radiator and intercooler to access the harmonic balancer and crankshaft.
• Extract the damaged factory alignment pin before beginning the repair.
• Position the harmonic balancer 180 degrees from the original factory pin location.
• Use the supplied drill jig to create a replacement pin hole approximately 3/4" to 1" deep.
• Install the hardened roll pin and secure the assembly using the OEM crankshaft bolt and washer.
• Tighten the crankshaft bolt according to factory torque specifications.
• Compatible with Fluidamper harmonic dampers.