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Radiator Caps for On and Off the Road

The radiator cap keeps the engine cool by sealing and pressurizing the coolant inside it. The pressure/radiator cap is responsible for releasing excess pressure in the cooling system. When the pressure reaches a predetermined threshold, the pressure pushes the valve open, allowing vapors to escape from the cooling system. Many of our radiator caps are available with a safety lever that locks the cap in place, and can be lifted to cause the cooling system to release pressure.

MotoRad offers the largest line of automotive radiator caps for use in almost every application — both on and off the road. With over 60 different caps, including 10 safety lever caps, MotoRad® brand or private label, are the preferred choice of most car experts. MotoRad radiator caps are a natural fit with our thermostat product line.

Our radiator caps offer precise pressure control and employ high-quality materials for long-lasting durability. We also produce specialized pressure caps that hold from zero pressure to over 30 PSI/2.2 bar, which are integrated in racing applications.

MotoRad radiator pressure caps are designed and manufactured in accordance with the highest auto industry standards and offer advanced features to meet aftermarket requirements.

Radiator Caps Products