Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 677-11631-00-97 STD Viewer:883 OEM No. : 677-11631-00-97-STD For YAMAHA Outboard 8 HP You May Also Be Interested In Piston Ring 688-11610-20 0.50 Piston Kit 6R5-11631-11 STD Cylinder Liner Sleeve L150OB Gasket, Silencer Cover 13853-94700-000/13853-94710-000