Aeroflow Oil Pressure Gauge Adapter M18 x 1.5 Male/Female Thread with 1/8" NPT Female Thread on

These adapters allow you to add an electric oil pressure gauge while still retaining the stock warning light or gauge. The adapters are 2-1/2" long and fit inline between the engine and the stock oil pressure switch and have a 1/8"-27 NPT port on the side to suit all types of aftermarket applications like Pro-Lites or Turbos etc