Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11631-60 STD Viewer:927 OEM No. : 676-11631-60-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 61U-11601-00-00 STD Piston Kit 66T-11635-00 0.25 Boot, Shift Rod 682-44147-00-00 Gasket, Water Pump 663-44315-00-00/663-44315-A0-00