Shop by Brand Mercury OutboardShim ; Washer Back Washer 12-16448 Viewer:400 OEM No.: 12-16448 For Mercury Outboard Engine You May Also Be Interested In Washer- 12-858234 Washer, Thrust 12-892805/892805 Impeller 3B2-65021-1/3B2650211M/3B2-65021-0/3B2650210M Gasket 6G0-11181-00