Fitment:
for 2018-2020 Buick Regal Sportback 2.0L L4
for 2018-2019 Chevrolet Traverse 2.0L L4
for 2018-2020 GMC Terrain 2.0L L4
for 2017-2020 GMC Acadia 2.5L L4
for 2016-2020 Buick Envision L
for 2015 Chevrolet Malibu L
for 2014-2017 Buick Regal Base Sedan 2.0L L4
for 2014-2019 Chevrolet Impala 2.5L L4
for 2013-2020 Chevrolet Malibu 2.0L L4
for 2013-2014 Chevrolet Malibu 2.5L L4

Know about the Thermostat Housing:
The Thermostat Housing:The thermostat is a valve that controls the flow path of the coolant. It is an automatic temperature regulating device, usually containing temperature sensing components, through thermal expansion or cold contraction to open and close the flow of air, gas or liquid.
Function:The function of the thermostat is to keep the engine from overcooling. For example, after the engine is working normally, the temperature of the engine may be too low if there is no thermostat when it is driven in winter. At this time, the engine needs to temporarily stop water non-circulation to ensure that the engine temperature is not too low.
Location:Generally, the coolant of the water cooling system flows in from the body and flows out from the cylinder head. Therefore, the thermostat is generally installed at the water inlet where the water pump is installed. This is the junction of hot and cold water, and the most sensitive place. Its opening temperature is the temperature of the cooling water in the engine block, while its closing temperature is the temperature of a small part of the cold water that flows from the radiator through the thermostat into the cylinder block. The volume and range of its adjustment are relatively compared. It is small, so its fineness of adjustment is relatively fine, and it will not cause large fluctuations in the temperature of the engine block to make the engine run smoothly.