OD 36mm x 1.5mm thick
O/E:FR66815

OD 39.5mm x 1.5mm thick
O/E:KP23004AA

40mm bore size
O/E: 11005 2122

40 mm bore size
O/E: 262554

44mm piston diameter
O/E:KP01030AA

40mm piston diameter
O/E:265227

44mm bore size
O/E: KC14002AA

34mm bore size
O/E: 4137 020 1202

40mm piston diameter
O/E: 5412500800

OD 46mm x 1.2mm thick
O/E: 4116 034 3005

also suits Husky 143R
O/E: 1400 41220 / 531 00 77 54

40mm piston diameter
O/E:4500 41110