Yamaha Lower Unit Assy 6H4-45300-11-EK - Enhance your boat's performance with the Yamaha Lower Unit Assy 6H4-45300-11-EK. This assembly is designed to deliver exceptional durability and efficiency, ensuring smooth and reliable operation in demanding marine environments.. The Yamaha Lower Unit Assy 6H4-45300-11-EK features robust construction and premium materials, providing excellent resistance to wear and corrosion. Its precise engineering and easy installation make it an ideal choice for maintaining your boat's optimal performance and longevity.. This product has been superseded by: 6H4-45300-12-EK. 6H4-45300-11-EK - LOWER UNIT ASSY