Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 679-11631-00 STD Viewer:799 OEM No. : 679-11631-00-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 688-11604-A0-00 0.25 Piston Kit 6L1-11635-01 0.25 CDI Unit Assembly 6H3-85540-11-00 Impeller 309-65021-0/309650210M/309-65021-1/309650211M