Dorman Engine Coolant Radiator Cap

The Dorman Engine Coolant Radiator Cap seals the cooling system and keeps it at the correct operating pressure. Use it to replace a worn, leaking or damaged radiator cap, also called a coolant cap or radiator pressure cap. A good cap helps the engine run at a stable temperature and helps prevent coolant loss.

Key Features:

• Holds the cooling system at its rated pressure, which raises the coolant boiling point and helps prevent overheating
• Pressure relief valve vents excess pressure, and a vacuum valve lets coolant return as the engine cools
• Gasket seals against the filler neck to limit leaks and coolant loss
• Built to fit and function like the original equipment cap
• Easy to install with no special tools. Always let the engine cool completely before opening the cooling system.

Dorman is a long-time supplier of aftermarket replacement parts. Replacing an aging radiator cap is a low-cost way to help protect the engine and cooling system. Choose the child item that matches your required pressure rating and style.