Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11631-00 STD Viewer:979 OEM No. : 676-11631-00-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6R5-11631-01-93 STD Piston Kit 64D-11636-00 0.50 Gasket, Exhaust Manifold 63V-41133-A0-00/63V-41133-A1-00 Seal, Oil Strainer 69J-13415-00-00