Yamaha Lower Unit Assy 6GS-45300-20-8D - The Yamaha Lower Unit Assy 6GS-45300-20-8D is engineered to deliver exceptional power and durability for your Yamaha outboard motor. This high-quality lower unit assembly is designed to withstand demanding marine environments, ensuring reliable performance and optimal power transmission. Depend on genuine Yamaha parts for unmatched reliability and performance on the water.. Maximize your boating performance with the Yamaha Lower Unit Assy 6GS-45300-20-8D. Designed for ease of maintenance and superior efficiency, this lower unit assembly is ideal for various marine activities, from leisure cruising to intense water sports. Experience the benefits of Yamaha's dedication to quality and innovation, providing consistent, smooth operation to keep your outboard motor running at its best.. This product has been superseded by: 6GS-45300-22-8D. 6GS-45300-20-8D - LOWER UNIT ASSY