Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6F6-11636-00 0.05 Viewer:1148 OEM No. : 6F6-11636-00-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 66T-11635-00 0.25 Piston Kit 6R5-11645-01 0.25 Bearing 3B2-00043-0/3B2000430M Pinion, Gear 57311-94401-000/57311-94402-000(11T)