I'm tired of harping on this subject, but I checked everywhere (including Motorcraft), and cant seem to locate a ECT sending unit / switch anywhere. I have a 2003 XLT 3.0 flex, and my current connector only has 1 wire going to it. Everything I checked is for the SENSOR, not the switch. I'm about ready to go junkyard diving to find one-Help!

 

Yes, it is on the elbow that tends to rust and leak, so just a heads up about that part
http://www.ebay.com/itm/Ford-Ranger-...-/271557558519

Sender is a 1 wire unit
Sender is F7DZ-10884-AA
Ebay: Ford Ranger Lincoln Mercury Water Temperature Sender F7DZ 10884 AA Fae | eBay

Sensor is 3F1Z-12A648-A

 

I'm sorry, I misinformed you, Ron D. What I'm really looking for is the one wire connector/pigtail with 1 wire for the sender, and the 2 wire connector pigtail for the sensor. Thanks for all the knowledge-it really helps

 

So the actual connector piece that would be part of the wiring harness.

Wrecking yard.

Ford would have used the same connectors on many vehicles.
If auto parts store will take returns on electrical components , I would get one of each, sender and sensor, make sure they are the same as yours and hit the wrecking yard to find matches.
Then return them