Oil Pressure Switch - STC4104 (STC4104R) with sealing washer and o-ring STC3372

Fits:

D1, RRC, Defender, with 1/4 spade terminal connection.

Can also be used for P38 and D2 if connector is changed to suit.

Note:

Supplied with a sealing washer (typically D1, RRC, Defender) and an o-ring (later RRC, D2 etc).  Use whichever suits your application and save the other one (you never know when it will come in useful!).