1.8 LITER. AUTO TRANS. A component which prevents leaks at the Cooling System Bleeder Screw. Engine Cooling. Part included in Radiator assembly. Radiator Drain Plug Gasket. To 10/2014. Upper Drain Plug. Door. Engine Coolant Bleeder Screw O - Ring. Gasket. Tank o - Ring. Included with: Radiator assembly, Reservoir Tank.