Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 670-11631-01 STD Viewer:949 OEM No. : 670-11631-01-STD For YAMAHA Outboard 50, 60, 75, 85 HP You May Also Be Interested In Piston Kit 6G5-11645-00 0.25 Piston Kit 61N-11631-00 STD Bearing 93341-41416-00 Piston Kit 784-9747A2/9747A 2 STD