Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6H4-11601-10 0.25 Viewer:853 OEM No. : 6H4-11601-10-0.25 For YAMAHA Outboard 40, 50 HP You May Also Be Interested In Piston Pin 6F5-11633-00 Piston Kit 689-11631-00 STD Throttle Shift Control Cable 26F Gasket 27-817277/817277