Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 676-11610-20 0.50 Viewer:845 OEM No. : 676-11610-20-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 61X-11603-00-00 STD Piston Kit 6E7-11631-00-97 STD Accelerator Lever Rod 697-41217-01-00 Fuel Filter Element 65L-24563-00-00