Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11631-60 STD Viewer:929 OEM No. : 676-11631-60-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 676-11610-00 STD Piston 6L2-11636-00-00 0.50 Transom Wedge TW-2-DP Clutch, Dog 664-45631-00-00/664-45631-01-00