I have a 335 utility tractor, with a loader, and TA, that needs a radiator replaced. YT dose'nt seem to carry radiators for MM, so I wanted to ID the tractor, for purposes of getting a correct radiator. I went to YT's serial number page and cant find my serial number. I have taken a number from the right side of the gear case, where YT said to look. It is in raised letters almost covered up with the TA handle. The number is very promenent, and easy to read.It is 10A5608 . I double checked and the A is correct,No A appears in the YT serial numbers, that I could find, It is the 3rd number and is NOT, a 4. Can any one help?