Radiator Cap 14-18 PSI

The Radiator Cap 14-18 PSI by ALLSTAR PERFORMANCE is a precision-engineered component designed specifically for standard-size radiator necks on high-performance engines. This cap is essential for applications where reliable thermal management is crucial for engine longevity and performance, such as in street rods, race engines, and restoration projects.

This radiator cap maintains optimal system pressure during operation, with a pressure rating of 14-18 PSI. The spring-loaded valve opens at this threshold, allowing excess coolant to vent into the overflow reservoir when system pressure exceeds safe limits. This design helps prevent radiator rupture and coolant loss during high-rpm operation or sustained thermal stress.

Enthusiasts, mechanics, and restoration specialists rely on correctly specified radiator caps to prevent overheating and coolant system failures. This cap is ideal for carbureted engines and traditional V8 builds, ensuring a reliable seal and easy installation without the need for adapter hardware.