Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-20/6F6-11610-20-0.50 Viewer:800 OEM No. : 6F5-11610-20/6F6-11610-20-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Pin 689-11633-00-00 Piston Ring 6H4-11601-10 0.25 Fuel Pipe Joint Complete 6G1-24304-00-00/6G1-24304-02-00 O-Ring 93210-19MJ1-00