spark plugs for 1917 D Universal ?

[riverbend]

We were visiting friends of ours and their neighbor has close to 100 tractors in his shed. Most of the them are Lanz but he has a 1917 Moline Plow 4 cylinder. Poking around on line, I think it is a Universal D. He is stuck because he can't find spark plugs for it. Any idea what would fit ? Most of his plugs are broken off so the numbers are not readable.
Thanks
Greg

 

[Dennis P]

I don’t know what size thread they are and I don’t know how original he wants to keep it, but there are adapters to take the original thread down to a modern plug. This would at least get him running. I think I found mine thru Ream Manufacturing. The depth of the plug in the head is the same.

 

[Ill John]

Contact Loren Book, www.minneapolismolinecollectors.org, he's the go to guy for Universals, Facebook Minneapolis-Moline Collectors

 

[riverbend]

Thanks Guys. I'll get a hold of Loren and check into the thread adapters.
Greg

 

[Ill John]

When you find the plug number, post it, I may have some in my collection of "stuff" i no longer need

 

[riverbend]

Loren said that he found a Champion 31 in a tool box and was running Champion 24s in his tractor. It was very nice of him to take time to help out some random guy on the internet.
Greg

 

[Alan K]

Loren said that he found a Champion 31 in a tool box and was running Champion 24s in his tractor. It was very nice of him to take time to help out some random guy on the internet.
Greg

Great guy and very knowledgeable on these