Land Rover Equivalent Part Nos: PRC6387. Defender, 2.5 200TDi, 2.5 300TDi, 1989-1998. Discovery 1, 2.5 200TDi, 2.5 300TDi, 1989-1998. Range Rover Classic, 2.5 200TDi, 2.5 300TDi, 2.5TD VM, 1986-1994. Oil Pressure Switch for Land Rover 300 Tdi Engines.