Trucks
Classic design with the alternator stator diameter 127 mm and acurrent output up to 50A / 28V or heavy, mechanically robust design with a diameter of 178 mm and the stator current output up to 200A / 28V.
Groups are numbered 9515 xxx, 9516 xxx or 9518 xxx - stator diameter 127 mm - 178 mm diameter of the stator.