Ensure your derby car's cooling system performs at its best with the Radiator Cap, 28-32 lb, designed to fit round, standard size radiator necks. Each cap is engineered to maintain optimal pressure, preventing overheating during intense races. At Total Tilt Derby, we provide reliable parts like this radiator cap to keep your vehicle race-ready while supporting custom orders tailored to your needs. Trust in durable, precision-made components that help you stay ahead on the track. Equip your derby car with this essential cap to maximize performance and longevity.