1/16-27 NPT Universal Transmission Test Port Extender

(You save $5.00 )

In Stock & Ready to Ship Most Orders Placed by 3PM EST Ship Same Day (Except Weekends & Holidays)
  • 30 Day No Hassle Returns

    30 DayNo Hassle Returns

  • Free Shipping Over $50

    Free Shipping Over $50Contiguous USA

  • Free In-House Support

    Free In-House Support

  • One Year Limited Warranty

    One Year
    Limited Warranty


GlowShift 1/16-27 NPT Universal Transmission Test Port Extenders gain access to your car or truck’s transmission test port to install a temperature sensor for extremely accurate readings. This trans temp test port sender extender features a male 1/16-27 NPT to female 1/8-27 NPT thread for the temperature sending unit. Extending the test port protects the temperature sensor from internal transmission parts that could cause the sensor to break and result in significant damage.

Compatibility: Each adapter is compatible with any transmission that has a 1/16-27 NPT test port. This transmission test port extender is available for Chrysler/Dodge 45RFE 4 Speed and 545RFE 5 Speed transmissions. Other popular models include:

  • 2001–2011 Jeep Grand Cherokee (4.7L, 4.7L H.O., 5.7L Hemi)
  • 2002–2007 Jeep Liberty (Diesel applications)
  • 2003–2011 Dodge Ram (3.7L, 4.7L, 5.7L Hemi)
  • 2005–2011 Dodge Power Wagon
  • 2003–2011 Dodge Dakota (4.7L, 4.7L H.O.)
  • 2003–2011 Dodge Durango (4.7L, 5.7L)
  • 2006–2010 Jeep Commander (4.7L, 5.7L Hemi)
  • 2007–2010 Jeep Wrangler (2.8 L CRD)

    • GlowShift Guarantee
      GlowShift includes Free Lifetime Technical Support and a One Year Limited Warranty with every purchase.

      • Universal Transmission Test Port Extender
      • Male 1/16-27 NPT to Female 1/8-27 NPT Thread
      • Install Aftermarket Trans Temp Sensors
      • Save Installation Time
      • Avoid Major Modifications
      • Free Lifetime Tech Support
      • One Year Limited Warranty
      • Installation Instructions
    Tech Specs
    Female Thread: 1/8-27 NPT
    Male Thread: 1/16-27 NPT
    Gauge Type: Transmission Temperature

    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 GlowShift products.

    Download and Print the PDF PDF Instructions View Our Help Center Help Center