Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11631-02 STD Viewer:1525 OEM No. : 61A-11631-02-STD For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Ring 676-11610-10 0.25 Piston Kit 6H4-11636-01 0.50 Bush, Solid 626-45317-09-00 Insert Cartridge 663-44322-00-00