ACDelco Professional 12T4D Engine Coolant Thermostat

An ACDelco Professional, premium aftermarket Engine Coolant Thermostat is a temperature controlled valve located in the engine coolant outlet to, or the inlet from, the radiator, and is the ideal high quality replacement for your GM vehicle. It controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. This premium aftermarket replacement engine coolant thermostat is manufactured to meet or exceed your expectations for fit, form, and function.

ACDelco Professional, premium aftermarket Thermostats and Caps offer you an ideal replacement for your worn GM Original Equipment part. Engineered to work with your car, truck, or SUV, ACDelco has a thermostat or cap for virtually any GM vehicle on the road today. ACDelco Professional, premium aftermarket Thermostats and Caps give you our legendary quality at a competitive price.

ACDelco has a full line of high-quality thermostats and caps for nearly all GM vehicles on the road today. Through our GM Original Equipment and Professional, premium aftermarket product lines, our thermostats cover a wide range of designs and temperature ratings to meet your needs. We also offer GM OE and Professional, premium aftermarket fuel caps, radiator caps, and oil filler/breather caps to replace your worn GM Original Equipment.