ACDelco 20837 GM Original Equipment Radiator

An ACDelco GM Original Equipment Radiator Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicleâ€™s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

seal and maintain pressure on the cooling system for vehicle safety
raise the boiling point of the engine coolant to maintain efficiency
fit most models of gm vehicles for expanded coverage
gm-recommended replacement part for your gm vehicle’s original factory component
offering the quality, reliability, and durability of gm oe
Fit type: Vehicle Specific
seal and maintain pressure on the cooling system for vehicle safety
raise the boiling point of the engine coolant to maintain efficiency
fit most models of gm vehicles for expanded coverage
gm-recommended replacement part for your gm vehicle’s original factory component
offering the quality, reliability, and durability of gm oe
Fit type: Vehicle Specific

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