AMS REMOTE OIL PRESSURE SENDING UNIT LINE RELOCATION 4G63/4B11 MITSUBISHI DSM The AMS Remote Oil Pressure Sending Unit Line allows you to safely mount your aftermarket oil pressure sending unit away from vibration. Our -3AN stainless steel braided line prolongs oil pressure sending unit life, looks great and is built to last. This line is a MUST when installing an aftermarket oil pressure gauge. Eliminates the chance of engine damage from a sending unit breaking off. Allows for longer sending unit life. Braided stainless steel for protection against abrasion and corrosion.