The Transmission Oil Lines Gauge Plunger is a cylindrical rod that slides smoothly within the gauge body. The primary function of the plunger is to convert the hydraulic pressure of the transmission fluid into a mechanical movement that the gauge can interpret and display as pressure on the gauge dial.Attributes: • Manufactured to precise specifications and are built for durability, and reliability• Withstands the constant pressure fluctuations and harsh operating conditions within the transmissionApplications:The Transmission Oil Lines Gauge Plunger is used to act as a direct interface between the transmission fluid and the gauge. As the pressurized oil pushes against the plunger, it converts that force into a linear movement.