Brand New Genuine TRD High Pressure Radiator Cap. Part Number: MS143-18001 (supersedes 16401-SP030) Specifications:Type: N-TypeOpening pressure: 127kPa (1.3 kgf/cm²) Raises the coolant boiling point over the standard cap, reducing the risk of boil-over under sustained high load. A cheap and effective addition for track, drift or heavily modified engines. Fitment:Fits a wide range of Toyota and Lexus vehicles using the N-type cap, including: Toyota Supra JZA70, JZA80Toyota Chaser, Cresta, Mark II JZX90, JZX100, JZX110Toyota Aristo JZS147, JZS161Toyota Altezza SXE10, GXE10, JCE10Toyota Crown JZS151, JZS155, JZS171Toyota Mark X GRX120, GRX130Toyota 86 ZN6Lexus IS200, IS250, IS300, IS350 Important: Two common cap types exist and some vehicles may be fitted with either. Aftermarket radiators in particular may differ from the factory type. Please check the shape of your existing cap against the photos before ordering. Full fitment list available on request.