Our standard single spade oil pressure switch fits Perkins 4.248 that take an earth supply from the engine block. It has a tapered screw thread and single spade type electrical connection for 12v or 24v systems.
Please note both of these switches work the low oil pressure warning light (or alarm). They are not oil pressure gauge senders.
UK delivery is by 1st class Royal Mail. European and Worldwide delivery is available.