seeking a source for an M939 protective control box or repair?

does anyone here have a good source they can pass on?

There is one NSN 6110014442546 on ebay which is the NSN for an A2 truck based on thread information.

You can also rebuild it.
https://www.steelsoldiers.com/showthread.php?t=113634

thought I would mention that I hope to not have to spend more than $200

I am down with trying to repair the one I have though

Is this for an A1 or A2 truck? I believe they are the same but things can have their differences. I have a good take off of an A1 truck for $120 shipped. I actually carried it around as my spare unit in my truck till i bypassed mine all together for a different setup. I ditched my ABS and a bunch of other junk though so mine was easier to do.

mine is an A2 however they are the same to my knowledge so would like to buy that one you have

Fuzzytoaster is where i got mine from.

I've got a few tested but used boxes for the M939 trucks for $120 shipped.

It is only two 24v solenoids inside. One for the starter, and one for dash power. Cole-Hersee makes them. If it has a small circuit board inside, this is simply to prevent re-engagement of the starter once the engine is running.

I am rebuilding mine, and then making an emergency jumper connector for it if it ever leaves me walking. This is just jumping the dash power hot leads together, since the starter can be activated via a screwdriver under hood. It is made from the base connector of a scrap PCB with a single large wire connecting 2 large pins together.

If you go with a modern starter that has a relay built onto it, you can bypass this function in the PCB which is half of its contents. You can then run the dash starter signal wire directly to the starter mounted relay.

Several options on PCB. Lots of rebuild info here if you choose that way.