Yamaha Piston Sub Assembly - 6CE-4380P-00-00 is an essential component designed to enhance the performance and reliability of your Yamaha outboard engine's trim and tilt system. This high-quality piston sub assembly ensures smooth and efficient operation, allowing for precise control over your boat's trim and tilt adjustments. Constructed from durable materials, it is built to withstand the challenging conditions of marine environments, providing long-lasting durability and optimal functionality.. The Yamaha Piston Sub Assembly - 6CE-4380P-00-00 is easy to install and integrates seamlessly with compatible Yamaha outboard models. By maintaining the integrity and responsiveness of your trim and tilt system, this piston sub assembly helps to improve the overall performance and maneuverability of your engine. Trust in Yamaha's commitment to superior engineering and quality with this essential piston sub assembly, ensuring your outboard engine operates at its best for a reliable and enjoyab