Firewall Junction 2 Big 1 Small Hole 63-121

Sending Unit Firewall Junction – 2 Big – 1 Small Hole, Female 1/8″ NPT, Billet Aluminum, Black 63-121This Firewall junction allows you to remotely mount the pressure transducers used with electronic gauges, while still keeping fuel and oil outside of the driver compartment.Two-Terminal Junction with Single Accessory Hole.Black anodized billet aluminum. Connects pressure lines to pressure transducers. Essential for stepper motor gauges. Typically mounted on firewall. Features 1/8″ NPT threads for transducers on interior side of firewall. Pressure lines connect adjacently on engine side of firewall. Flexible installation options: available with or without accessory wiring holes.