LS Engine Swap M12 1.5 Adapter to 3/8 NPT Coolant Temperature Sensor Water LS1 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 551179

Allowed me to use my factory coolant temp gauge for my LS swap in my 88 firebird. Feels a little fragile so i just tightened with caution.

Used to run a mechanical gauge on my LS3. Used in the back of the passenger side head. It does run cooler than the electronic temp sensor in the front of the drivers head, not sure if that is due to its length, or the cool water coming in the passenger side of the motor and exiting the drivers side, hence hotter on the drivers head. overall good quality, and exactly what i needed to get my gauge to work. It does stick out quite far and to remove the spark plug i need to remove this from the head.....

Works well, a little bulky and you may have to disconnect a plug wire to screw it in, but it's fine otherwise.

This worked perfect for adding Joel electric fans to a 6.0l Chevy 3500 express. It fit the temperature sensor included in the painless universal dual fan painless wiring kit.I really wish they would make these out of brass rather than cheap aluminum. Be careful not to over tighten.

I got this to add a water temp switch at ack of block on 5.3 ls engine on my tahoeI bought 2 sizes the short and long the shorter one was the best fit work out perfect

Worked great on my ls swap. Converted 3/8 to the metric thread size on most chevy ls heads

Nice adapter but wrong size for me. These are quality items but you need to make sure you have the right sized based on your sensor size.

Feels cheap. Temp readings are lower, probably because of how far out the adapter is from the head coupled with how small the hole is for the coolant to reach the sensor. Although, other than buying the correct sensor, this is the best way to go.

This is exactly what I needed to fit an older style gm water temp sender into a newer ls style block. Would buy again

Works great no issues.

Nothing wrong with the adapter fitting, but my temp sensor probe was too deep and wide to work with this one. I had to use a longer one - which I was trying to avoid on my LS engine. Spark plug boot is hard to remove with long adapter.

Was what I needed to make my jeep TJ water temp sensor work with my LS swap. I went with this one cause of the known company. Even states their products are made in Kanas. So would be American made. Would’ve gave a 5 star except for the made in china knock off on the bag. Could have bought the one 3 adds down for almost half the cost and probably ended up with the same part. Either way, does the job. Still good quality and never broke or stripped any threads when installing.