Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11642-01 STD Viewer:1550 OEM No. : 61A-11642-01-STD For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Ring 6R5-11603-00-00 STD Piston Ring 6F5-11610-00-00/6F6-11610-00 STD Cylinder liner Sleeve 11212-91L90 Fuel Pump Assembly 6E5-24410-02-00