Yukon - Tahoe - Sierra - Silverado - Escalade - Avalanche thermostat For engines 4.8 5.3 6.0 6.2 Almost new, fits GM GMC original factory. Reason for selling: I changed it thinking it was the cause of overheating, but it turned out to be the water pump. I installed it for less than 5 hours and then changed the water pump with its thermostat, and this one became extra. It works 100% and the price is 100.