The Motorcraft Original Equipment Radiator Cap is an OES replacement component that provides the same performance, durability, and service life as your factory original equipment. Product Features:Standard and safety vent radiator pressure caps availableExtensive coverage for most cars and trucks, as well as farm and construction equipmentSwivel-seal radiator caps are designed to provide increased durability and can be removed without damage to the rubber atmospheric sealZinc-plated to resist corrosion and rustPressure valve springs are made of stainless steel to maintain calibrated pressure throughout the service lifeRubber pressure valve gasket resists high temperatures and deterioration from coolant and additivesPressure and vacuum relief features help extend radiator and hose lifePrevent accidental cap removal with positive low-pressure stop feature