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Your cart is empty. This is a CNC machined aluminum adapter designed to mount inline into a 1.5" ID radiator hose. This adapter allows you to put a temperature sensor with 3/8 NPT threads in your radiator hose. This could be useful if you are looking to add an auxiliary water temperature gauge or fan control kit but do not have a port in the intake manifold or water pump to mount the sensor.
The adapter also includes installation instructions, two stainless steel hose clamps, a stainless steel grounding screw along with a quick-disconnect electrical terminal to make it easy to provide an engine ground to your sensor.
To install the adapter, you simply cut your radiator hose in the location where you want to mount the adapter, slip it in place, and use the supplied hose clamps to tighten it down. Your temperature sensor screws into the threaded port. You will need to consult the documentation for the sensor you are using to determine if it requires a ground or not. Some sensors provide their own ground - these usually have two or more wires. Other sensors get their ground through the body of the sensor itself - these usually only have one wire. If a sensor does not provide its own ground, you will need to provide it with one by connecting a wire between the sensor (or the adapter) and a convenient ground source such as a bolt on your engine. If a ground is necessary, you can use the provided grounding screw. A quick-disconnect for the ground is also included.
This adapter will work in any vehicle which has a 1 1/2" ID radiator hose that has about four inches worth of straight section for the adapter to be mounted in. The threads in the adapter are 3/8 NPT. (A 1/8 NPT version of this adapter is also available.)
Michael Thompson
Reviewed in the United States on March 25, 2025
Excellent Part and fast shipping!
Indigogt
Reviewed in the United States on February 14, 2025
*** Great product, Good price, Fast delivery, Nice seller ***
Mad dad
Reviewed in the United States on June 23, 2024
Works as intended.
Kurt
Reviewed in the United States on November 10, 2024
Nicely machined, nicely finished, fits and works perfectly.
C. Lane
Reviewed in the United States on April 16, 2024
As the headline states, bought this to add a location for a temperature switch to my 225 slant six engine. Installed on the lower radiator hose (Directions picture shows on the upper hose but read them, not by thermostat) by simply cutting the hose and inserting this adapter. Fit and finish is excellent and the provided threads for both the switch and grounding wire were cleanly threaded and the switch didn't leak (did use teflon tape.) Would definitely recommend and buy again if needed.
Teknurd
Reviewed in the United States on November 3, 2023
I'd have preferred to install my radiator temp sensor on my lower radiator hose, but had to use the top hose due to not having any space on the lower hose.I installed this in the upper hose and it looks like something from the future. I used it to have a temp-controlled electric fan on my 1987 Bronco II (Similar setup would work in a Ford Ranger). Would buy again.
Tom V
Reviewed in the United States on December 7, 2022
Bought this and paid a little more because the quality looked better and was not disappointed when I got the part. Second, the larger port worked perfectly for my aftermarket gauges.
CW
Reviewed in the United States on November 22, 2021
I agree with other reviews about the threads not being tapped enough. Only got 2 full threads until it stopped, about another 1/4 turn to fully tighten. Be prepared to purchase a tap if you want more thread engagement. Decent product except for the lack of complete tapping.
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