Manufacturer Part Number: 580184. 2004-2012 Chevrolet Malibu 2.2L L4, 2.4L L4, 3.5L V6, 3.6L V6. 2005-2008 Chevrolet Cobalt 2.0L L4, 2.2L L4, 2.4L L4. Product Type: Disc Brake Rotor. Interchange Part Numbers: ACDelco 18A1659, AIMCO 55093, AIMCO 10155093, CARQUEST 55093, PRONTO 55093, PARTS MASTER 126138, Raybestos 580184R.