Part Numbers: 16321-22070.. Fitment: for Toyota Corolla 2003-2008, for Toyota Celica 2001-2005, for Toyota MR2 Spyder 2001-2006, for Toyota Matrix 2003-2008.. Function: The radiator coolant filler is installed on the car to control the water flow, which makes the car coolant system work well.. Material: The radiator coolant filler is made of plastic, wear resistant, rust resistant, durable and cold resistant.. Easy Installation: It can directly replace the old or broken radiator coolant filler. Note: Before replacing the housing, make sure the housing is cool or wear the protect tool for your hand..
