Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6J8-11631-02 STD Viewer:725 OEM No. : 6J8-11631-02-STD For YAMAHA Outboard 25, 30 HP You May Also Be Interested In Piston Kit 677-11631-00-97 STD Piston Kit 676-11635-00 0.25 Piston Ring 689-11610-20-00/689-11610-21-00 0.50 Drive Shaft Comp. - L 679-45501-10-00