Save time installing a transmission temperature gauge sensor in your car or truck with our 1/8-27 NPT Transmission Test Port Extender.

We first came up with this trans temp gauge adapter when we were doing some work on a Dodge Ram. We needed a shortcut to install the transmission temperature sensor and the solution ended up being this extender.

The fitting extends the transmission test port so you can install the sensor. It’ll help you save time, speed up installation and avoid making major modifications to your vehicle.

Even though we initially made this transmission test port extender for Ram trucks, it can be used almost universally on most cars and trucks.

One really important thing to keep in mind is that this adapter has to be used if you’re installing one of our Transmission Temperature Gauges. If it isn’t, internal transmission parts will break the trans temp sensor which could cause significant damage.

Each extender is built to be durable and long lasting too. They’re manufactured using carbon steel with a yellow zinc coating to prevent corrosion. Install the sender and gain access to accurate and reliable readings.

Pick up a transmission test port extender and install a trans temp gauge sender in your car or truck. We include instructions plus Free Lifetime Tech Support comes standard, so if you have any questions along the way we’re always here to assist.