Roller bearing for crankshaft piston measures 15.8 x 12.1 x 12.7 chainsaw cut-off saw Models: STIHL 08 S - 038 - BG 17 - BT 360 SG 17 - TS 08 S - TS 350 TS 360 - TS 460 Code: 40271801 Original Code: 9512 003 3140 MP