The thermostat housing is located in the engine between the engine and the radiator. When the engine cools off below the operating temperature, the thermostat housing is closed.
The common symptoms of a thermostat housing leak are a stuck thermostat valve, an illuminated low coolant warning light, and the P0128 or P0126 code.
If the thermostat housing is broken or leaking fluid, it needs to be replaced as soon as you can.

Compatible with Toyota 4.6L 5.7L Vehicles:
2008-2011, 2013-2021 Land Cruiser
2008-2022 Sequoia
2007-2021 Tundra

Compatible with Lexus 4.6L 5.0L 5.7L Vehicles:
2016-2020 GS F
2008-2011 GS460
2010-2022 GX460
2008-2014 IS F
2022 IS500
2018-2022 LC500
2007-2017 LS460
2008-2016 LS600h
2008-2011, 2013-2021 LX570
2015-2022 RC F

Replaces Part #: THT005, THT-005, 16031-0S010, 16031-38010 Engine Coolant Thermostat Housing Assembly.

NOTE: This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.