Leading A-Series engine specialist since 1981
This 1/8-inch NPT oil pressure switch can be adjusted from 15 to 150psi using the grub screw on the end, to illuminate an oil pressure warning lamp far earlier than the standard switch.
Often by the time the standard oil pressure lamp switches on, the damage has been done.
Feed one terminal via the oil pressure light to a fused ignition live, the other to earth. This varies to the standard switch, which is earthed through the engine block itself - the advantage here being that you can mount this switch remotely out of the way via a braided line.
We would recommend wrapping the thread with PTFE tape upon fitment.