45.2mm bore size
O/E: 544 22 28 02

45.2mm piston diameter
O/E:

Fits Stihl 038 & MS381

Crank Shafts for different models

52mm piston diameter
O/E: 1119 030 2002

OD 52mm x 1.5mm thick
O/E: 1115 034 3010

52mm piston diameter
O/E:

52mm bore size
O/E: 1119 020 1204

42.5mm piston diameter
O/E:1123 030 2016

48mm bore size
O/E: 544 22 28 02

OD 48mm x 1.5mm thick
O/E: 503 28 090 15

52mm bore size
O/E: 544 22 28 02