Description: Helps enhance vehicle performance in high-rpm or high-load conditionsDesigned to release at higher cooling system pressures than factory caps, raising the coolant boiling point to protect engines under high-rpm or high-load operation  Enhance performance in high-rpm or high-load conditions with the TRD radiator cap. Releases at higher cooling system pressures than factory caps, raising the coolant boiling point to help protect the engine LOGO: TRDPRESSURE RATING: 18.5 psiTRD: TRDTYPE: N Type