Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6F6-11635-00 0.25 Viewer:856 OEM No. : 6F6-11635-00-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 69L-11642-00 STD Piston Kit 6R5-11642-01 STD Bushing, Drive Shaft 626-45316-09-00 Carburetor Repair Kit 67D-W0093-01-00