Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 689-11631-60 STD Viewer:996 OEM No. : 689-11631-60-STD For YAMAHA Outboard 25, 30 HP You May Also Be Interested In Piston Ring 647-11610-00-00 STD Piston Kit 6H3-11635-01 0.25 Piston Ring 12140-93140-050 0.50 Throttle Shift Control Cable 24F