auto motive starter selenoid
 

i know i have asked this before but i never found out which one.

what automotive starter selenoid will work on my 109. i have a 88 ford selenoid that i know works. the tractor only has on little threaded stud. the auto one has two. (one that says "s" the other says "I") which one do i use.
last question. some automotive starter selenoids have diodes in them. does the cub cadet have a diode in the selenoid or no? if it does or does not can i use a selenoid that has a diode or not
thanks
mike

I wish I could tell you which model and if it has a diode in it but I can't. What I can tell you is I on my 127 I got rid of yesterday, I did the same thing you have done. I bought a replacement solenoid from an older Ford from O'Rieleys for about $12.00 and it popped right in. It should have a little piece of paper in the box telling you which post to use in single post applications. Here's a pic of the old and the new Ford, I hope it somehow helps.

http://imageshack.com/a/img822/3352/8y5r.jpg

http://imageshack.com/a/img853/2733/3bgl.jpg

I checked to see if I still had the box and I do. I tracked down the part on O'Reilly's and here's the link. I lost the piece of paper telling you which post to use, but if you get this part, it'll tell you when you get it.

http://www.oreillyauto.com/site/c/de...1931&ppt=C0330

In the description is says:

"Brand Information
Contains spike suppressing diode on certain applications to extend ignition switch life and provide minimal interference with on board computers."

SOOO it looks like this one has a diode in it but it worked like a charm for me.

I used this one from Stens on a 126.
Starter Solenoid (Stens) part # 435-431 (used on a 71-1X2 thru 147)
Not sure if it will work on your 109.

thanks
on your new selenoid it should have an s or i. what did you connect your wires too and which one(s)
thanks

Wire in question should be connected to the s terminal.

i have this selenoid. it is out of an 88 thunderbird. do you think with it being a little fatter in size it will be ok?
really dumb question. how do i know what is the pos. side of the selenoid?
thanks again.

one on left is the 109. one on right is the thunderbird.

looking down is the pos. and neg the same thing for both.

Both large terminals are Positive! No Negative! And use S terminal for starting

The solenoids are the same. But why not go get a new one. That Ford solenoid is correct, and they are like $10-$15.... Just go get a new one. Oh, and Grampie is 100% correct!