Feature: Automatically adjust the water yield flowing into the radiator according to the temperature of the cooling water, so as to ensure that the engine works within the appropriate temperature range. Made of durable material for long service life. Good performance, directly replaces the old or broken one. This is a non-OEM product, accessory only! Specification: Condition: Brand New Material: Metal, Plastic Color: Black OE Number: 1430879, 49408, 1603131020 Size: 8.5x8.5x12cm / 3.35"x3.35"x4.72"(L*W*H) Mounting Hole Diameter: 7mm / 0.28" Fitment: for Lexus GS300 2006 for Lexus GS350 2007-2011 for Lexus GS350 2013-2015 for Lexus IS250 2006-2015 for Lexus IS300 2016-2018 for Lexus IS350 2006-2018 for Lexus RC300 2016-2018 for Lexus RC350 2015-2018 Package Included:1 x Thermostat Housing Assembly