58mm piston diameter
O/E:1106 030 2003

Suits "New Style" Stihl
O/E: 0000 350 0526

42.5mm piston diameter
O/E:1123 030 2016

Crank Shafts for different models

Suits Many Chainsaws over 45cc
O/E:

Multi Tool for 3/4 Chain

Fits Husky 61, 66, 162, 266, 268 &272

52mm piston diameter
O/E:

Rebuild Kit (non original) O/E: RB 40

Suits Husky
O/E: 503 52 13 01

OD 52mm x 1.2mm thick
O/E: 1122 034 3000