Come on Kraig - Oh Great One, Keeper of the Photos - you didn't tell Ride TJZ why you were guessing it was a 125, and that the 125 just happens to be your favorite Cub Cadet.
Ride - to help explain Kraig's guess I can add that your tractor has a Kohler K-series cast iron model K-301A engine. That engine was standard in the Cub Cadet Model 125. Also, since there is no manual tranny shift lever and I can see (as Kraig did) the little screw holes (hopefully with screws still in them) in the top of the frame cover in the center of the tractor, and that tells me and Kraig there is a fan housing for a hydrostatic pump for the tranny. Now, Kraig must have looked up your serial number in the build chart to find out it was Feb 1968 and that is when the 125 from the 1x4/5 series was being produced.
So, all in all, Kraig ain't really guessing.
So, where do we (you) go from here. I anxiously opened this thread since it was titled "New tractor". I was hoping someone had found an NOS unit in the back of some dealers stock room, or something like that. When I saw your pic, well I knew you meant "New to Me tractor", and that's ok, but it took the wind out of my sails so to speak. I barely have enough energy left to type this message
.
Anyway, I see Marty also mentioned about using the term restoration. It riles up some people since many believe to do a restoration you can only use original equipment parts, and a few of those even believe the parts must be from the correct era. So, what it comes down to is maybe you're planning to restore your unit, but most likely you are going to refurbish it, or even just fix it up some.
Now, if you're really gonna restore your unit, the pic posted by Kraig, Oh Great One Keeper of the Photos, shows you what a NEW 125 should look like. You can still buy most mechanical parts, but some cosmetic things are hard to come by. The original fiberglass seat has been NLA for a long long time. You can find used one around, even sometimes in pretty good condition, but that blue piping around it (which you can see in the pic) is really hard to come by. CC Specialties (listed in one of those colorful boxes at the top of the page) is a great source for brand new parts. It's owned by Charlie (Digger) who is one of the Administrators on this Forum. Charlie even has several items reproduced that are NLA from Cub Cadet.
So, welcome to the IHCC Forum. The best place on the net for all your Cub Cadet info and needs. If you have a question, we've got the answer (well someone on here does).
Hydro Harry
Old Cubs Never Die
I think even Charlie says there are no stupid questions (even tho he sometimes gets a little ornery with a 2nd/3rd answer) 
