PISTON FOR POWER HARROWER : STARK 25 STARK 26 OM 726 EMAK 8260 IN THE BOX YOU WILL FIND PISTON - SEGMENTS - SPIN - SEEGER Ø34 Ø SPIN OTTO 8 EMAK - OLEO MAC - DYNAMAC - EFCO Original part No.: 013906 Original part No.: 4161030A MF