Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6H1-11631-03 STD Viewer:902 OEM No. : 6H1-11631-03-STD For YAMAHA Outboard 48, 75, 80, 85, 90 HP You May Also Be Interested In Piston Kit 689-11631-00 STD Piston Kit 689-11636-60 0.50 Gasket, Valve Seat 6A1-13621-00-00/6A1-13621-A0-00 Gear, Knee 682-42142-00-00/682-42142-01-00