Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6H4-11610-10-00 0.25 Viewer:1072 OEM No. : 6H4-11610-10-00-0.25 For YAMAHA Outboard 40, 50 HP You May Also Be Interested In Piston Kit 6E7-11635-00-00 0.25 Piston Kit 6L1-11645-01 0.25 Oil Seal, S-Type 93101-30M17-00 CDI Unit Assembly 696-85540-11-00