Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 656-11610-11 0.25 Viewer:743 OEM No. : 656-11610-11-0.25 For YAMAHA Outboard 25 HP You May Also Be Interested In Piston Ring 664-11610-20 0.50 Piston Kit 6J8-11635-02-00 0.25 Bearing 93315-425U7-00 Gasket, Cylinder Block 27-832933-5/832933 5