Fitment: 1998-2008 Toyota Corolla 2003-2008 Toyota Matrix 2003-2006 Pontiac Vibe 2000-2005 Toyota Celica 2000-2005 Toyota MR2 Spyder The function of the car thermostat: The car thermostat is to ensure that the engine works within the appropriate temperature range. The thermostat automatically adjusts the circulation of cooling water to help the engine cool down and make the engine work better. .
