Just curious if someone can help me itentify this cat. I bought it at an estate sale, the owner passed several years ago and it's been indoors. His family said he completely restored this rig 5 years ago, including a cat reman engine. Its perfectly straight and the paint is extremely good.

The only serial number I found is on the left rear of the engine head, it says "TraxCavator" and the number below it is 11A445. I think it weights around 14,000 lbs.

I brought it home and put a fresh 12 volt battery on it and the engine purrs, everything works perfect, i was amazed. Does not even smoke, and it's a diesel. Absolutely no leaks anywhere. Just curious what this machine is? Thanks in advance for any help.

hello here some info i have saved from ozdozer ,bruce oz

quote -933 Loader

Here is a sumation of the 933 lineup as posted by OzDozer:

The 933C was released in Feb 1956 based on the D2 drivetrain, and using D2 undercarriage.

It came with oil master clutch as standard, and the engine of the 933C was called a "special arrangement" of the D311. It produced 50HP.

The 933C transmission was identical to the D2, but the steering clutches were heavier (wider) with 12 discs. The final drive gears were the same as the D2, but the housing was 2" wider to accommodate the larger steering clutches, and the sprocket shaft was redesigned and made heavier.

The undercarriage consisted of a fixed trackframe (non-oscillating) that was 13" longer than the D2, and the tracks were basically D2, but were 37 link and used 5 rollers.

In mid-1957, at S/N 11A2163, the 933 was upgraded to D4 undercarriage, along with many other improvements.
The undercarriage overall, was seriously increased in size, with heavier track roller frames, and 2 tie bars were installed between the drawbar and traxcavator frame, to enable drawbar loading to be spread over a greater area of the frame.
This redesign was renamed the 933E (some sources say S/N 11A2251 was the 933E introduction).

Your 933 will be a 933C and build in 1955 early 55. Check your PM.
Kelly

I agree, I show the 933C starting in 1955 not the 1956 stated by Oz and that would be an early serial number......but ya never know for sure with some of these production numbers.

11A445 is a 933C built September 1955.