Buy 2022 Gmc Sierra 3500 HD SLE Cab & Chassis Fleetside 6.6L V8 A/T 4WD Engine Timing Chain. Timing - OEM Gmc Part # 12646386 (12586482, 12646387)

CHAIN ASSEMBLY - Timing. Engine Timing Chain.
Engine Timing Chain.

Engine Timing Chain

Timing Chain - Repair or Replace
Your engine's timing chain can stretch over time resulting in a check engine light that comes along with excessive noise from your engine's timing cover. If the chain has broken, which is a rare occurrence, the engine will not start. If your 2022 GMC Sierra 3500 HD has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.