Never used, directly replaces the old one and easy installation.. Fitment: for Mazda 3 2006-2013, for Mazda 6 2009-2013, for Mazda CX-7 2010-2012, for Mazda 5 2008-2010, for Mazda 5 2012-2013. OE Number: LF941517Z, 902690. 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.
