3.7 LITER. MAIN. Water pump bolt. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Engine Coolant Outlet Housing or related components. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Engine Coolant Thermostat to it's mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Engine Oil Level Sensor to it's mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Water Pump Housing to it's mounting point. Belt Tensioner Bolt. Belt Tensioner Pulley Bolt. Bolt that fastens heater hose to vehicle. Engine Camshaft Position Sensor Bolt. Engine Coolant Thermostat Housing Bolt. Engine Crankshaft Pulley Bolt. Engine Oil Filter Adapter Bolt. Engine Water Pump Bolt. Outlet pipe mounting Bolt. Included with: Thermostat Housing, Water Pump.