PISTON + PIN (half keystone) ->9 / 1989 54.00mm Bowl Premium Std

IZUMI = (ME012174 stamped on crown)

Partners ring set 26AAB1160 (1/2 Keystone)

Bowl Dia : 54.00mm round
Bowl Depth : 18.75mm approx
Compression Height : 60.85mm
Gudgeon pin diameter = 34.00mm
3 Ring Piston. Top ring : 3mm Second ring : 2mm Oil ring : 4mm

Suits >9/89

CLE 10/1/06