Gaskets, oil seal and bearings, Puch Maxi of early design.
Check the dimensions of the stuffing boxes and bearings you have in your engine as there is a difference between early and late design. This is the earlier model that does not have a bearing with a narrower inner race.
2x 17x40x7
1x 22x40x7
3x 6203 C3
1x 6203NR C3