Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11636-60 0.50 Viewer:896 OEM No. : 676-11636-60-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 662-11631-01 STD Piston Kit 6H4-11635-01 0.25 Retaining Ring 53-880719/880719 Fuel Filter 15410-98500-000