Crankshaft

Find New OEM crankshaft components for GM engines. Our factory-original crankshafts, crankshaft sensors, and related components are sourced from GM surplus — covering Gen V LT platforms (LT1, LT4, L83, L86) and other GM engine families.

Crankshaft specifications — journal diameter, stroke, counterweight balance, and sensor trigger wheel configuration — must match your engine block and ECM calibration exactly. An OEM crankshaft eliminates all of these variables, providing factory-correct balance and trigger pattern for proper ignition and injection timing.

Crankshaft installation requires precision torque procedures, proper bearing clearance measurement, and engine break-in. Verify part numbers against your specific engine RPO code before ordering.