yeah I saw that one on ebay too..
Thanks for the info, we didn't know thats what it did. Here is where we are....we do not know if the one we have is good or bad, just going to replace (I guess we'll reuse it now), the solenoid must have been removed because it's not there. Also is it possible that this 3 prong unit also works the light? As there is a plug in the other head and no other sensor on the engine. We plan to fire it up soon, hate to have to drain the coolant to add a temp sensor later...
If you'd like to see the car heres a link to our site:
1972 LeMans