New AC Delco Original equipment waterpump. Includes gaskets and pulley.NOTE: When replacing 1997-2003 water pump, part number 557670 (thermostat & housing) must be purchased as the old thermostat & housing will not fit new pump.
New performance waterpump gaskets. Sold individually. 2 required per car. fits 1997-2009 C5/C6 and 2001-2009 Z06. Gasket has 2 Oblong holes and 1 round hole. For gasket with 3 round holes order part # 550962A