Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11642-01 STD Viewer:1535 OEM No. : 61A-11642-01-STD For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Kit 6E7-11635-00-00 0.25 Piston Pin 6R5-11633-00 Gasket, Oil Seal Housing 11421-95200-000 Gasket 27-8036636/8036636