Case S tire sizes

[breimer]

I have a 1950 Case S. Looking at pictures and specs at tractor data.com, it looks to me like these all had 15 inch front wheels with a smooth wheel that looks like it might be cast iron. Mine however has 16 inch stamped steel ones with 6.00 x 16 tires. Could it have been ordered that way from factory or has someone changed them at some point. Previous owner suggests they might be factory

 

[CZ]

Yes it is possible they are original. They are listed in the parts catalog as 04055TS for a 5.50 X 16 tire. My 1943 model S has them.

 

[Nedd]

Probably not factory. My 45 S has cast wheels. And
I?ve seen early ones with 15 inch pressed. Chances
are someone put on 16 inch wheels from an Allis
WD

 

[CZ]

From the factory 15" pressed steel wheels were available for early SC tractors only. The 16" pressed steel wheels were factory available for S tractors, Serial number 4505420 onward.
Yes Allis WD wheels will fit a model S, but neither Case or Allis actually made the wheels, they came from a separate provider.
All this is from my library of original case, sales, parts, and service manuals. There were a lot of factory options,and many parts on these old tractors were interchangeable and
probable often were.