1.187" Shaft Size/ 1.693" O.D./ 0.250" Width. Keeping water where it belongs is critical to maintaining a smooth-running propulsion system, and the Mercury MerCruiser Bearing Carrier Seal (26-14077) is built to do just that. Designed to form a tight seal around the bearing carrier, this OEM part helps prevent water intrusion and keeps essential components protected from corrosion and wear. If you're noticing excess moisture in your lower unit or signs of seal deterioration, replacing it before major damage occurs is a smart move.. Why This Seal Matters:. Reliable Water Protection - Blocks water and debris from entering the bearing carrier, preventing premature wear.. Durable Construction - Built from high-quality materials to withstand the rigors of the marine environment.. OEM Precision Fit - Specifically designed for MerCruiser MR, Alpha One, Alpha One SS, and Alpha One Gen II stern drives.. Technical Specs:. Shaft Size: 1.187 inches (30.2 mm). Outer Diameter: 1.693 inches (43 mm). W