ACDelco RC118 GM Original Equipment 15 PSI Radiator Cap

The ACDelco RC118 is a GM Original Equipment radiator cap designed to maintain optimal cooling system pressure at 15 PSI. This pressure cap is engineered to GM's exact specifications to ensure proper coolant system operation and prevent overheating in your vehicle.

Key Features:

• 15 PSI pressure rating for optimal cooling system performance
• GM Original Equipment quality and precise fitment
• Helps maintain proper coolant boiling point and system pressure
• Prevents coolant loss and system contamination
• Direct replacement for worn or damaged original cap

A properly functioning radiator cap is critical to your vehicle's cooling system. By maintaining the correct pressure, this cap raises the boiling point of your coolant and ensures efficient heat transfer throughout the engine cooling system.