Description :Trim Panel RetainerType :Single HeadColor :BlackBottom Head Diameter :3/4″Top Head Diameter :NoneStem Diameter :11/32″Stem Length :7/8″Material :NylonOEM Number :(21094146 ; 6501301)GM :2007: Sierra 3500 HD, Sierra 3500 Classic, Sierra 2500 HD Classic, Sierra 2500 HD, Sierra 1500 HD Classic, Sierra 1500 Classic, Sierra 15002006: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 1500 HD, Sierra 15002005: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 1500 HD, Sierra 15002004: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 2500, Sierra 15002003: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 2500, Sierra 1500 HD, Sierra 15002002: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 2500, Sierra 1500 HD, Sierra 15002001: Yukon, Sierra 3500, Sierra 2500 HD, Sierra 2500, Sierra 1500 HD, Sierra 15002000: Yukon