Yamaha Lower Unit Assy 6GS-45300-04-8D - Elevate your boating experience with the Yamaha Lower Unit Assy 6GS-45300-04-8D. This high-performance lower unit assembly is meticulously crafted to ensure exceptional durability and reliability. Designed to withstand the toughest marine conditions, it guarantees smooth power transfer and optimal functionality for your Yamaha outboard motor.. The Yamaha Lower Unit Assy 6GS-45300-04-8D is perfect for both casual boaters and marine professionals. Its robust construction reduces maintenance needs, allowing for more time on the water. Whether you're fishing, cruising, or engaging in water sports, this lower unit assembly delivers outstanding propulsion and seamless operation, making it an essential upgrade for your outboard motor.. This product has been superseded by: 6GS-45300-06-8D. 6GS-45300-04-8D - LOWER UNIT ASSY