Transmission Test Port Extender

Your Price: $9.99

Item Number:
Female Thread:
1/8-27 NPT
Male Thread:
1/8-27 NPT
6.7L Cummins
5.9L Cummins
Gauge Type:
Transmission Temperature
In Stock & Ready to Ship Most Orders Placed by 3PM EST Ship Same Day (Except Weekends & Holidays)
  • Free Shipping Over $50

    Free Shipping Over $50

  • Easy Returns

    Easy Returns

  • Free In-House Support

    Free In-House Support

  • One Year Limited Warranty

    One Year
    Limited Warranty

  • Overview

    MaxTow's Transmission Test Port Extender is specifically designed for the 1994-2007.5 Dodge Ram. This Trans Test Port Sender Extender is required when installing any of our transmission temperature gauges into your 1994-2007.5 Dodge Ram Truck. If this trans test port extender is not installed, major damage could be caused to the sensor by internal transmission parts. This 1/8 NPT adapter extends the transmission test port, which allows you to easily thread the transmission temperature sensor seamlessly into the port.

    This installation accessory is not compatible with 68RFE Transmissions.


    Includes an installation guide which is available online and included with your order. You can also visit our library of installation videos which include complete step-by-step tutorials and useful tips on how to install a wide range of MaxTow products.

    Download and Print the PDF PDF Instructions