Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11635-60 0.25 Viewer:887 OEM No. : 676-11635-60-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 66T-11636-00 0.50 Piston Kit 6F5-11636-00 0.50 Clutch Assembly 52-821930A1/821930A 1 Power Head Gasket Set 27-898101A06/898101A06