Nige
Senior Member
All Part Numbers on that illustration are Cat Numbers.Now I understand what you were getting at. Hmm, I have always just used my parts book. My Parts book only lists the 8J-1698 and 3G-2996 boom cylinder groups. And for the 3G2996, it only lists two serial numbers, neither of them mine. So theoretically I use a kit for 8J-1698.
However, I can understand on a machine this old that the CYL's could have been swapped out. And if I may ask, where is this seal catalog? It's a catalog I can buy? Are those seal kit numbers CAT part numbers?
Regarding the catalogue. See if you can find a copy of Cat Publication PEXP1020 anywhere on the net.