6H4-11631 Piston and 3 Rings Kit STD For Yamaha Outboard Motor 2t 40HP 50HP 3 Cylinder 6H4-11631-09-96/95 67MM

Brand New Piston Set For Yamaha 3cyl Outboard Motor,And it has 3 piston rings on it, please notice it.
This Piston Set is STD , standard size, it has the following items inside:

Bore Size of Piston & Ring: 67MM, 2.638" ,
Contain Ring Set 6H4-11610-00-00, x3pcs
Piston Pin 648-11633-00-00 x1,
Circlip 6H4-11634-01-00 x2

For Yamaha Sierra Outboard 40, 50 horsepower 3 Cyl (2 strokes) engines.
Piston Assy with Ring Set, Clip, Pin (std)

***if your 6H4 engine is using 2piston rings model, please use this link 6H4-11631-09