Temp light sender for 472/500/425

[TJ Hopland]

Was just doing some cleaning around my desk and found the receipt from the temp sender I put into my 73 before I installed the new AC compressor.    It was a Napa Echlin TS 6742.  Not sure what its intended for, I just found it doing some searching for a lower temp trip than the factory one, I may have originally found it at a place like Summit Racing.  Napa's info says it closes at 210.   Under typical conditions the light never comes on.   On a hot day it will kinda glow a bit on hot restart but goes out in a few seconds.    Once time on a hot day stopped in traffic with the AC on it also started to glow.    Guessing based on gauge readings that its glowing in the 220 range.   It was not what I was expecting but I am happy with the way its working out, it seems to give you a hint that its getting hot before the factory sender did.

Figured I would share for those that would like a more info than the factory setup but don't really want to install a gauge.   The physical size is almost identical to the original sensor, not sure about the terminal, some sites show the original having a screw, this one has a quick connect tab. 

[cadillacmike68]

Most of those senders have a tab. Easier to connect / disconnect. Getting one with a lower threshold like you did helps you to monitor things better.

["Cadillac Kid" Greg Surfas 15364]

TJ,
Just for conversations sake, for1973 the factory "water temperature" sensor is designed to close at 270 degrees F, which they (designing engineers) thought was a safe limit.  The metal temperature sensors were designed to close at 320 degrees. 
Greg Surfas