OD 40mm x 1.6mm thick
O/E: 5402500600

34mm bore size
O/E: 4137 020 1202

40mm bore size
O/E: 4134 020 1214

40mm piston diameter
O/E:265227

OD 43.25mm x 2mm thick
O/E: FR66551 57538

40 mm bore size
O/E: 262554

40mm piston diameter
O/E: KP01029AA

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

OD 33mm x 1.5 mm thick
O/E: KP23002AA / KP23006AA

OD 43mm x 1.5mm thick
O/E: 041 04090 210

OD 44mm x 1.5mm thick
O/E: 13008 6044

40mm piston diameter
O/E:7021041110