Yamaha Lower Unit Assembly - 68V-45300-34-8D. The Yamaha Lower Unit Assembly - 68V-45300-34-8D is a vital component for maintaining the peak performance of your Yamaha outboard motor. This high-quality assembly ensures smooth and efficient power transfer, reducing engine strain and enhancing overall functionality. Engineered for a precise fit, it guarantees seamless operation, making it an indispensable part of your motor's maintenance and repair needs.. Manufactured to meet Yamaha's rigorous standards, the Yamaha Lower Unit Assembly - 68V-45300-34-8D offers exceptional durability and longevity. Its robust construction is designed to withstand the demanding conditions of marine environments, ensuring your outboard motor operates at its best. Whether you're replacing a damaged lower unit or performing routine maintenance, this assembly provides the reliability and peace of mind necessary for worry-free boating experiences.. This Lower Unit applies to the the follwoing models: 68V-45300-