266-8550: Coolant Radiator Cap

Description: The Radiator Cap is designed to seal the top of the radiator filler neck to prevent coolant loss, pressurize the cooling unit, and raise the boiling point of the coolant. The pressure created by the Radiator Cap helps to prevent the coolant from boiling and evaporating at high temperatures. Attributes: • Provided with directions on the cap to guide for tightening and removing • Manufactured to precise specifications and are built for durability, and reliability Applications: The Radiator Cap is used to prevent entering external contaminants in the coolant filler port, this is mostly used in Cat C15, C18, C9, XQ1140, and C6.6 Generator Set.