Yamaha Lower Unit Assy 6KB-45300-00-CJ - Upgrade your Yamaha outboard with the Yamaha Lower Unit Assy 6KB-45300-00-CJ. This premium lower unit assembly is engineered for optimal performance and longevity, ensuring your outboard operates at its best. Designed with precision and crafted from high-quality materials, it offers superior resistance to corrosion and wear, making it ideal for various marine conditions.. The Yamaha Lower Unit Assy 6KB-45300-00-CJ is built to provide exceptional durability and reliability. Its robust construction ensures it can handle the demands of the marine environment, giving you peace of mind while on the water. Easy to install and maintain, this lower unit assembly is a smart choice for Yamaha outboard owners who want to enhance their engine's efficiency and performance.. 6KB-45300-00-CJ - LOWER UNIT ASSY