1939 5j Cat brass taged dozer blade here is the info on the brass tag

Have no information on the part number, but the 933 A bulldozer probably refers to the track loader first introduced in 1955 as the 933C. I suppose there might have been a dozer blade produced as an option for that machine vs the normal buckets which would have been used.

Any pictures? The standard 2S blade is a solid welded structure with no pins or ball joints at all, only trunions at the rear of the push arms and pins where the cylinder connectes on top. The 2A angle dozer blade has a "C" frame with a pivot in the middle of the front to allow the moldboard to be pivoted either left or right and pinned in that position. There was also a dozer available with the push arms detatchable, so that the moldboard could be removed and the push arms swung around to the rear so it could pull a toolbar to use various shanks, hippers, etc.

Does the moldboard show any modification to the attaching points on the back?

CAT's agreement with LeTourneau ended in 1944 probably as a result of the competition between CAT and LeTourneau in the earthmover category. LeTourneau had been producing pull scrapers for a long time to complement CAT tractors, but had begun producing self propelled scrapers which were first of a flood of machines that eventually dominated the market so much that a pull scraper is a rare beast to see in operation anymore.

41d257 is the correct number for a 933A angle blade, it is basically the same, as the 2a bulldozer. It is a Caterpillar blade made for the 933, we would love to see pictures, the angle blade for the 933 is somewhat rare.

Hi Team,
from a Sales Brochure I got as an Apprentice at The Dealer back in 1962.
this is from Form No 617-32995-1 and Dated (5/59)
Hope this helps.
Cheers,
Eddie B.

As I was reading all the responses, I was thinking I had seen years ago a picture of an angle blade under a raised loader bucket with arms extending down to lift the blade. At the time, I thought one would have to be careful on a slope as it looked top heavy! Sure enough, it is in the brochure posted by Eddie B. - item K.

I guess that part of my mind still works!

Jan CAT 15 PV7207

Also wondering is that to much blade for my d2 5j ,just looks a little bigger than ones i have seen on d2,
Thanks all for the help ,and how rare is the 933A angle blade . thanks clankclank

A 933 and a D2 are the same tractor.
This would leave me to believe that it isn't too much Blade for that tractor.
My LaPlante Choate is about the same size as in the Trax brohure.

It depends on how your D2 is set up, if your D2 has the long, five roller track frames and big idlers from a loader, it probably will handle ok, but will be underpowered and hard to turn. If it has the standard four roller frames and small idlers, that blade will be too much weight in the front to work smoothly. That being said, the 933 blade assembly is rare, was made for the long track frames and there are lots of people who would like to have that setup on their D2. It would be a better fit on a late U model D2.