Safety Lever Radiator Cap MotoRad safety lever radiator caps utilize a lever that locks the cap to the filler neck requiring the lever be lifted before removal. When the lever is lifted, the valve pressurizing in the cooling system is opened and pressure is vented through the overflow tube making it safe to remove the radiator cap. MotoRad offers a variety of pressure caps ranging from 4 PSI to over 30 PSI.

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