Allstar Performance - Radiator Cap 18-22 Psi Small Diameter

Ensure your vehicle's cooling system maintains optimal performance with the Allstar Performance Radiator Cap. This robust radiator cap is designed to handle pressures ranging from 18 to 22 PSI, making it ideal for small diameter radiator necks of 1-5/8 inches. Made for efficient coolant system management, it allows heated coolant to exit into overflow and returns coolant efficiently as the system cools, helping to maintain your vehicle's engine temperature balance. Ideal for race vehicles with high-pressure demands, the cap provides reliability and durability under extreme conditions.