What will these new rollers fit?

[David420C]

I have 10 new rollers mounted on track frames with part number T16843T and a painted series of numbers where the rail sits on 13030. The used top rollers say T13880T. What type of crawler are these for? Thanks

[Lavoy]

I can not find the roller number anywhere.
The other number is just for the greasable type idler cover. It was used as a replacement/sub piece on 40 through 2010 at least, maybe 350 and 450. Unfortunately that does not tell for sure what the upper idler itself fits.
Lavoy

[David420C]

Thanks for your help. I found out the rollers are for a John Deere 350. What else would they fit?

[Lavoy]

They should fit all the way down to the 40, but there were some different 350 rollers in later years, and the parts system used to say something about needing shims of some sort. If this is the case, not sure they will fit anything but 350.
Lavoy

[digitup]

Only the 350s and that odball 400 had those tracks in later years same rollers ,top idlers and sprockets also A friend of mine had a 400 it never lasted as long as my 350c and did half the work too I dont think the 400s were a great crawler but the UC matched the350s to a T .Digitup.