Never used, directly replaces the old one and easy installation.. Fitment: for Volvo S60 2003-2005, for Volvo V70 2003-2007. OE Number: 34794, 15349, 1430850, 31293699. Good Replacement: The engine's thermostat regulates the temperature of the engine by controlling coolant flow. A bad or failing thermostat: high temperature reading and engine overheating, low temperature reading and underheated engine, temperature changing erratically, coolant leaks around thermostat housing or under the vehicle. How to fine thermostat: You can find your car's thermostat by starting at the upper radiator hose and following it to where it enters the top of the engine.. Package Included: 1 x Thermostat Housing Assembly.
