Description: Genuine GM Uncoded Ignition Lock Cylinder Kit with Tumblers and Springs, part number 20766607. This GM OEM uncoded ignition lock cylinder kit with tumblers and springs is a factory lock or key component matched to the vehicle's locking system. 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 20766607 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.