Yamaha Lower Unit Assy 6GS-45300-05-8D - Upgrade your Yamaha outboard motor with the Yamaha Lower Unit Assy 6GS-45300-05-8D. This premium lower unit assembly is engineered for maximum durability and reliability, ensuring smooth and efficient power transfer. Designed to handle the toughest marine conditions, it provides optimal performance and functionality for your outboard motor.. The Yamaha Lower Unit Assy 6GS-45300-05-8D is perfect for both casual and professional boaters. Its robust construction minimizes maintenance needs, allowing you to spend more time on the water. Whether you're fishing, cruising, or enjoying water sports, this lower unit assembly delivers exceptional propulsion and seamless operation, making it an essential upgrade for your Yamaha outboard motor.. This product has been superseded by: 6GS-45300-06-8D. 6GS-45300-05-8D - LOWER UNIT ASSY