Description: Genuine GM Timing Chain, part number 12646387. This GM OEM timing chain connects the crankshaft to the camshafts, keeping valve timing synchronized with piston movement for smooth, reliable engine operation. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12646387 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Bearing. Escalade. No. 3. Sierra, silverado. 6.2l. Yukon. 6.2l. Corvette. Without z06.