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

Fits Husky 61, 268 & 272

Suits Stihl
O/E: 1119 640 3200

46mm bore size
O/E: 4203 020 1201

RocwooD Rebuild Kit o/e: K15 WJ

O/E: 1123 120 1650

RocwooD Rammer Engine
Parts interchangeable with GX100

Zama Diaphragm Kit

Suits Stihl 017 & more
O.E: 1130 120 0603