Roller bearing for crankshaft piston measures 14.8 x 12.1 x 14.7 chainsaw cut-off saw Models: STIHL BH 22 , BH 23 , BH 24 , BH 55 , BH 65 , BS 30 BS 45 YA , BS 50-2 , BS 52 Y , BS 60-2 , BS 60 Y , BS 65-V BS 65 Y , BS 70-2 , BS 500 , BS 600 , BS 650 , BS 700 , WM 80 Code: 40271637 Original Code: 034835 MP