Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 689-11636-60 0.50 Viewer:858 OEM No. : 689-11636-60-0.50 For YAMAHA Outboard 25, 30 HP You May Also Be Interested In Piston Kit 6R5-11642-11 STD Piston Kit 61A-11631-02 STD Gasket, Air Cleaner 688-14416-00-00/688-14416-01-00 Power Head Gasket Set 27-42364A92/42364A92