Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11631-02 STD Viewer:1514 OEM No. : 61A-11631-02-STD For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Ring 61X-11605-00-00 0.50 Piston Ring 676-11610-20 0.50 Lower Unit Gasket Set 3B7-87321-2/3B7873212M Piston Kit 12110-96353-000 STD