M16-1.5 To 1/8” NPT LS Engine Oil Pressure Sensor Adapter made from billet aluminum. Used to adapt the engine oil sensor port to 1/8” NPT by removing the sensor or plug in the rear of the block behind the intake or on the driver front of engine behind power steering pump and threading this adapter into the port and threading your 1/8” NPT threaded fitting or sensor into this adapter. Comes with sealing washer and adapter. Proudly made in the USA from aircraft grade billet aluminum.