This is a Hesston 665cm we were have troubles with it steering to the left it only wanted to go right .So it was time to find some parts.The only problem is they stopped making these in 1987 or some time around there.Made in Italy, parts are hard to find knowing that fiat bought newholland we started looking on newhollands website at the crawlers they make we found that some of the part numbers are the same but some are different so we took a chance and ordered one clutch disk of two different ones. We got lucky and it turns out that clutch disks from a TK75VA crawler are the same but different part number. The part number for the fiber discs that we ordered from new Holland is 5197641
