Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11636-60 0.50 Viewer:897 OEM No. : 676-11636-60-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6L1-11631-11 STD Piston Kit 64D-11635-00 0.25 O-Ring 25-30613/30613 Gasket 11433-93300