This ACDelco brake disc rotor is designed for use on a Jeep Commander. The rotor is made of cast iron and has a solid style with a 12.6 inch outside diameter. It is designed for the rear, left, and right placement on the vehicle and has a bolt pattern of 5 x 5 inches (5 x 127 mm). The rotor is uncoated and has a thickness of 0.551 inches, while the discard thickness is 0.492 inches. The manufacturer part number is 18A2363A and the interchange part number is 19261792. This brake disc rotor is not a vintage part and is not designed for universal fitment or performance upgrades.