What is this?

[hozjob]

I have a '99 6410. This sensor is located on the top of the head near the firewall on the drivers side. It has one wire coming out of it that isn't connected to anything.

The first picture uploaded sideway's for some reason...gotta turn your head to the left.

 

[Peter 315]

Looks like a temperature sending unit for a gage:confused3:

 

[jd110]

It is a sensing bulb for a mechanical temperature gauge. Appears to have been cut off. It should be permanently attached to the gauge. This had to be an add on gauge. The factory gauges were electrical.

 

[joecdeere]

parts book shows a plug there, somebody had something extra at one time

 

[stingray1]

Bingo

 

[stingray1]

It is a sensing bulb for a mechanical temperature gauge. Appears to have been cut off. It should be permanently attached to the gauge. This had to be an add on gauge. The factory gauges were electrical.

Bingo

 

[hozjob]

Thanks everyone!