A-Premium 6 Pcs Engine Timing Chain Kit for 2014-2021 GMC Sierra 1500. This products replaces part number: 9-4205SD, 9-4205, 12586482, 12646386, 12646387, S-1110, 12690616, C-927, 12632727, S-1111, 12631214, 12623640, 9-5978, 12686368, 9-5976, 12632728. Same Day shipping, Delivery time Guaranteed, Highest Quality.