Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 646-11631-01 STD Viewer:1296 OEM No. : 646-11631-01-STD For YAMAHA Outboard 2 HP You May Also Be Interested In Piston Kit 679-11636-00 0.50 Piston Ring 61U-11601-10-00 0.25 Grommet, Water Tube 333758/0333758 Throttle Shift Control Cable 27F