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Suits: Nissan Patrol GQ & GU
This oil pressure adaptor screws into the engine block where the oil pressure sender is located.
It then lets you add in an aftermarket oil pressure gauage.
The factory gauges are known to play up so fitting an aftermarket oil pressure gauge is a good idea.
Male thread is BSP and the female thread is NPT.
The adaptor screws into the BSP fitting on the engine block, and takes both NPT and BSP oil sender units.