Yamaha Lower Unit Assembly - 6E7-45300-05-EK. The Yamaha Lower Unit Assembly - 6E7-45300-05-EK is designed to enhance the performance and durability of your Yamaha outboard motor. Crafted with high-quality materials, this lower unit assembly offers excellent resistance to wear and corrosion, ensuring long-lasting service in diverse marine environments. Its precision engineering guarantees a perfect fit and smooth operation, making it an indispensable component for maintaining the efficiency and reliability of your marine engine.. Engineered for easy installation, the Yamaha Lower Unit Assembly - 6E7-45300-05-EK integrates seamlessly with your existing outboard motor setup. This robust assembly boosts overall motor performance, providing reliable and efficient operation on the water. Trust in Yamaha's commitment to excellence and innovation with this dependable lower unit assembly, built to withstand the challenges of harsh marine conditions and keep your boating experiences trouble-fre