Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 679-11631-00 STD Viewer:783 OEM No. : 679-11631-00-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6L1-11645-01 0.25 Piston Ring 61U-11601-10-00 0.25 Circlip, Piston Pin 09381-14001-000 Shim 676-45567-00-10