PISTON + PIN (Alfin, 5mm Oil Ring) Premium

IZUMI = OE (number on piston = 13216-2010 ) , Suits up to engine number >#20631
NON OIL COOLED CROWN 5mm oil ring , partners ring set PR6010
If nil can use the following (in full sets only)
6 x P6023 + 6 x PR6031 non oil cooled crown piston OR
6 x P6031 + 6 x PR6031 + 6 x 23AEE0940 (oil squirter) oil cooled crown piston

Cast No on bottom of piston 13211-2120- stamped on bottom of gudgeon pin boss 13216-2010
Suits oz spec GH1H 1/91-6/94
Dimensions
4 ring piston
Top ring = 2.806mm full keystone
2nd ring = 2.500mm
3rd ring = 2.500mm
Oil Ring = 5.000mm
Combustion bowl Dia : 57.30mm
Combustion bowl depth : 20.00mm
Toridial bowl
Overall length : 121.50mm
Compression height : 69.50mm
Has no valve reliefs.
Does have cut out for 1 x oil sprayer.