Identify this sending unit

[mopowers]

What type of sending unit is this? I'm guessing water temp, but what is the screw for in the top of the piece? Some sort of adjustment?

 

[Cuprum-74]

https://www.rockauto.com/catalog/images/transpurple100.png

Is what I got for the water temp sender.

 

[67Dart273]

What are we workin on, here?

Whatever that is, it's not an OEM sender off a "traditional" A body

 

[Cuprum-74]

Dunno, I did see something like this on a truck I worked on sometime ago some where.
Somehow I can't recall... Sorry

All kidding aside, it is a possible smog component of some sort, maybe ignition.

 

[qkcuda]

I worked on a 78 brand X once that had just a ton of vacuum switches and hoses, some of which were connected to a temperature sender. My guess is the center post is for the temp gauge and the spade connector goes to some sort of emission control. Let me know if I win the prize.

 

[slantsixdan]

Intake air charge temperature sensing switch, p/n 4111 482. It is not adjustable—that's not a screw, it's a just a split-barrel male terminal. Threads into the intake manifold. Talks to the EGR controller. Shows up in '78-'86 Dodge Truck FPCs…probably a little earlier and later, too, but that's the range I have easy access to. Want a new one?

 

[mopowers]

Intake air charge temperature sensing switch, p/n 4111 482. It is not adjustable—that's not a screw, it's a just a split-barrel male terminal. Threads into the intake manifold. Talks to the EGR controller. Shows up in '78-'86 Dodge Truck FPCs…probably a little earlier and later, too, but that's the range I have easy access to. Want a new one?

Awesome! Thanks. That is the exact number on it. And, no thanks- I don't want a new one. In fact, I don't want this one. Do you, before I toss it?