d4 2t

Does it have Military Tags on it or is it an old WW2 era that was never repainted at the Dealership?
In that time period they were all painted Olive Drab at the factory.
Tags would increase the value somewhat over a D4 of the same era.

What is it worth? I'd say it would depend on whether you're buying or selling. Condition of the machine as regards running gear is a major factor. I've seen machines that the undercarriage was over 100% worn out, yet they were functional. Another factor to consider is location, it seems in the western half of the US prices are lower than in the eastern half of the country due to how many of the old machines there are.

W Wide gauge....... In that age D4's they were all mixed in the same series, both wide and narrow. The narrow has no special designation.

SP Special Parts.... This designates a tractor that has optional (usually internal) parts that would have been installed as it came along the assembly line. This does not include things like PTO's, Hydraulic controls, electric start etc. One thing that seems to be pretty common in the "SP department" is optional transmission gear ratios.

When that tractor was built, CAT had not started building their own bulldozers and controls for them. There were several aftermarked suppliers producing equipment for CAT tractors. I believe it was LaPlant-Choate that had a plant close to CAT so tractors could be moved over to their factory and the dozer or whatever installed before it was ever shipped to the customer. In 1945 or there abouts, CAT introduced it's own line of attachments. Probably the only thing they didn't produce for some reason was logging/towing winches. For some reason they left that to Hyster.

Good luck on your purchase!.

the last post makes since .he did say it was wide gauge 60'' also has a winch on back to

That tractor is not in New York State is it?
There is one sitting in an old Orchard with tracks sunk in 6 inches with water running over them.
That tractor says "WSP" also, the owner says its a "WAR" tractor because of the "W".
He wants lots of money, more than its worth because of his lack of knowledge on the subject.
BTW
It too has a Laplant Choate Dozer system on it, along with a big Hyster winch.
We bought one at an old Sawmill Auction in Pennsylvania 30 years ago which was still Olive Drab.
Ran it like that for a couple of years till my brother came home with 2 gallons of CAT Yellow.
That one was a GOOD tractor!

this dozer is in south west Pennsylvania . don't know yet if it saw actual duty at war or not if it didn't it well turn yellow if it saw active duty well leave olive drab. this well be my first old cat .

Thats funny because ours came out of a sawmill 2 hours South of Bradford!
As far as paint in my opinion, leave it green as it will be historically correct plus it will stick out in a crowd of yellow prompting more people to stop and read the placard explaining why it is Green!