Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 656-11631-60 STD Viewer:1409 OEM No. : 656-11631-60-STD For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Kit 6R5-11636-11 0.50 Piston Kit 6H4-11636-09 0.50 Power Head Gasket Set 27-835427A04/835427A04 Guide Palte, Water Pump 350-65025-0/350650250M