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Valve Train Components for 1999 GMC Sierra 2500

Part # / Description / Price
Crankshaft Gear
MSRP $54.15
GM GM

Engine Timing Crankshaft Sprocket

Camshaft Gear
MSRP $59.89
GM GM

Engine Timing Camshaft Sprocket

Timing Chain
MSRP $110.91
GM GM

Engine Timing Chain

Synchronizes the rotation of the crankshaft and the camshaft(s) to help ensure that the engine's valves open and close at the proper time during each cylinder's intake and exhaust strokes Manufactured to GM OE specification for fit, form, and function