This heavy duty oil pressure relief valve kit is supplied complete with spring and piston. This is designed for use with single relief single port engines.
Empi Heavy Duty Oil Pressure Relief Spring and Piston. This is designed for use with single relief single port engines fitted to Beetles 1950 to 1971, T2 Splits 1967 to 1971 and T2 Bays 1967 to 1971.