Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11635-00 0.25 Viewer:1410 OEM No. : 61A-11635-00-0.25 For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Kit 624-11631-00 STD Piston Ring 664-11610-20 0.50 Piston Kit 779-803677003/803677003 0.50 Drive Shaft-L 45-897624/897624