Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11635-00 0.25 Viewer:1417 OEM No. : 61A-11635-00-0.25 For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Kit 679-11631-00 STD Piston Kit 6E7-11631-00-97 STD Bearing 387787/0387787 Propeller 664-45952-00-EL