50899-ZV5-020AH Seal Steer Tube SS - Overview. The 50899-ZV5-020AH Seal Steer Tube SS is a critical component in Honda marine engine steering systems. Specifically engineered for use in steering assemblies, this part ensures the effective sealing of the steering tube, maintaining smooth operation and protecting against water intrusion and contaminants. Constructed from high-quality stainless steel, it offers excellent corrosion resistance, especially in saltwater environments, making it a durabl