Description: Genuine GM Front Engine Cover, part number 12637040. This GM OEM front engine cover encloses and protects the timing components at the front of the engine and seals in engine oil. 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 12637040 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.