Yamaha Lower Unit Assembly 61U-45300-20-EK - Enhance the performance of your outboard motor with this genuine Yamaha lower unit assembly. Expertly crafted from premium materials, this assembly ensures exceptional durability and reliability in various marine environments. Its robust construction offers excellent resistance to wear and corrosion, providing long-lasting and smooth operation for your vessel.. The Yamaha Lower Unit Assembly 61U-45300-20-EK delivers efficient power transfer and superior stability, enhancing your boat's overall performance. Perfect for both professional and recreational boating, this assembly ensures your outboard motor operates at peak efficiency. Trust in Yamaha's commitment to quality and innovation to keep your marine engine in optimal condition, offering a dependable and superior boating experience every time you set sail.. This product has been superseded by: 61U-45300-23-EK. 61U-45300-20-EK - LOWER UNIT ASSY