GlowShifts Transmission Test Port Adapter for the GM Duramax Allison 1000 allows you to easily install a 1/8-27 NPT temperature sensor to the test port of any 2000-2019 Chevrolet Silverado or GMC Sierra 6.6L Duramax. Before this adapter, the only way to gain access to trans temp readings was to cut the transmission cooler feed line and install a t-fitting adapter. Now you can access those same temperature readings while dramatically cutting down the installation time. An O-ring is attached to the male thread of the adapter that prevents transmission fluid leaks at the test port connection. This sensor thread adapter is manufactured from high-quality steel with a yellow, zinc coating. At GlowShift Gauges we also back any purchase with unrivaled Customer and Tech Support.
