B61 Ignition Switch Replacement?

[deutz7110]

B61 has been progressively getting more finicky to start, key had to be just so to get power to the dash, and this morning I couldn't get anything on the dash at all. Cranked yesterday and moved a couple hundred yards but no luck today. I'm guessing the ignition switch is no longer internally making contact. Anyone have a part number, link, or phone number so I can track one down. It has the push button start and I'm not sure how much that changes things as to what will work for it. We have an old B1 in the woods, so I'll probably try to rob one from there, but would like to get another on hand since I'm replacing a high milage, used ignition switch with another.

I inherited the truck in July. My dad bought it in the 80s and we have used it pretty continuously since then for grain storage where we would crank ~2x a month to dump out grain, but has essentially sat in between. Probably hasnt been 5 miles in the last 10 years, but would crank and run at the drop of a hat and never gave any issues other than the batteries being old and not holding charge and the slight finicky-ness with the key. 

[Brocky]

That would be a simple on/off switch with a wire from it to the push button. NAPA might(???) still carry something?? Try calling Watts Mack, the sponsor of this website, Barry would know how to get one if he does not have one in stock.. For your described usage a simple toggle switch would work!!