ACDelco RC95 GM Original Equipment 15 PSI Radiator Cap

The ACDelco RC95 is a GM Original Equipment radiator cap designed to maintain optimal cooling system performance in GM vehicles. This spring-loaded cap seals the radiator filler neck or coolant surge tank, creating a pressurized environment that elevates the boiling point of engine coolant and prevents overheating during operation.

Key Features:

• 15 PSI pressure rating for effective cooling system pressurization
• Spring-loaded design maintains consistent pressure during engine operation
• Vacuum valve allows coolant to flow from expansion tank during engine cool-down
• Prevents coolant loss and system vapor lock
• GM Original Equipment quality for precise fit and long-term durability
• Manufactured to GM specifications for guaranteed compatibility

By maintaining proper system pressure, this radiator cap raises the coolant boiling point above standard atmospheric levels, allowing your engine to operate at higher temperatures without boiling over. The integrated vacuum valve automatically replenishes coolant from the overflow reservoir as the engine cools, ensuring the system remains full and preventing air pockets that can lead to overheating.