OE part number: 163210A040 902-5123. FITMENT:Engine Coolant Thermostat Housing Fit for 2004-2006 for Lexus RX330,2004-2006 for Toyota Sienna. Function: To ensure that the engine works within a suitable temperature range, so as to effectively control the emissions produced by the engine.. Installation: The installation is very simple, just replace the old thermostat directly, it will be done in a few minutes, make sure that the installation is successful before driving.. Note: The accessories have met or exceeded OEM standards and are made of high-quality materials, which can perfectly replace the old thermostats..
