ACDelco GM Original Equipment Radiator Surge Tank Caps help seal and regulate the cooling pressure of your vehicle's radiator surge tank, and are GM-recommended replacements for your vehicle's original components. These radiator surge tank caps have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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• Helps seal and regulate cooling pressure in your vehicle's radiator surge tank
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function