This is a radio volume control (wing) knob for Chevrolet, Chevrolet Trucks, Oldsmobile Trucks, Cadillac Trucks, Oldsmobile, and GMC Trucks cars sold in the U.S. from 1995 to 2005. AC Delco, part number 16189159. It has 9159 embossed in the back. The knob dimensions are 1.30 in × 1.80 in × 1.30 in. Please use the zoom feature to closely inspect pictures.
