Help Needed - What is this Part and related Part Number

[Matt CLC#18621]

Hello,

I need help obtaining what is known as a blower delay switch, GM Part No. 25036591.

I have attached a picture of it, the part screws into a hot water valve.

Assistance with part suppliers would greatly be appreciated.

Thank you very much.

Matt CLC #18621

[Jeff Rosansky CLC #28373]

Is that the water temp sensor that screws in behind the alternator?

["Cadillac Kid" Greg Surfas 15364]

Matt,
If you are sure that is what you need e mail me. Greg Surfas.    Clsalamo@aol.com