Genuine Toyota Accessories PTR04-00000-03 TRD Radiator Cap
Provide valuable protection for your engine under high RPM and high loads with a TRD high pressure radiator cap. This radiator cap is designed to release at higher cooling system pressures than stock radiator caps, raising the coolant boiling point and enhancing vehicle performance. Helps enhance vehicle performance in high RPM or high load conditions. Provides increased pressure for reduced heat. Releases at higher cooling system pressures than factory caps, raising the coolant boiling point to protect engines under high RPM or high load operation.