Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 670-11631-01 STD Viewer:947 OEM No. : 670-11631-01-STD For YAMAHA Outboard 50, 60, 75, 85 HP You May Also Be Interested In Piston Ring 6H4-11610-20-00 0.50 Piston Ring 675-11610-20 0.50 Oil Seal 3R0-00122-0/3R0001220M Crank 677-11432-00