Engine Coolant Thermostat Housing

Fitment:
for Chevy Corvette 2014
for Chevy Silverado 1500 2014-2019
for Chevy Silverado 2500 2014-2019
for Chevy Suburban 2015-2020
for Chevy Tahoe 2015-2020
for GMC Sierra 1500 2014-2018
for GMC Sierra 2014-2020
for GMC Yukon XL 2015-2020
for GMC Yukon Denali 2015-2019
for Cadillac Escalade 2015-2020

Replaces OE Number:
12674639,12666569, 12650534,
12671393, 12650536,12657137,
Relace for GM12671393

A bad or failing thermostat:
1.high temperature reading and engine overheating,
2.low temperature reading and underheated engine,
3.temperature changing erratically,
4.coolant leaks around thermostat housing or under the vehicle.
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.