Oil gallery plug for connecting an oil pressure gauge to the engine block of Citroën vehicles of type 11CV and HY. The plug closes the oil channel and enables a secure connection with an oil pressure sensor or oil pressure line. The metric M16x150 thread fits the existing threaded bore of the lubrication system. The design supports reliable sealing between engine and measuring device. The material is suitable for use in engine oil environments under normal operating temperatures. The plug supports monitoring of oil pressure during operation and helps with diagnosis of possible engine damage and lubrication related irregularities.
