Shop by Brand Mercury OutboardBearing Back Needle Bearing 31-160521 Viewer:105 OEM No.:31-160521 For Mercury outboard 9.9, 15, 18 HP 2 & 4 Stroke You May Also Be Interested In Bearing 31-888681/888681 Bearing Set 31-30894A1/30894A 1 Bolt 90101-10M49-00 Solenoid Assy 89-817109A1/817109A 1