Cylinder package, Puch Monza/N50 38/12mm

12mm piston bolt. Piston, gaskets, piston bolt, etc. as shown in the picture are included. Note that the four stud bolts are not included. It is a package of art.no 16018 and 16019 at a lower price. Insug 12430 for this cylinder. If you want 17mm intake 11270, this needs to be modified by filing the holes a little