Yamaha - Outer Plate, Cartridge Trim & Tilt System Component 6EK-44323-00-00. Overview. When you're working on Yamaha trim and tilt systems, you start to appreciate how every small piece plays a role in keeping things tight and responsive. This outer plate is one of those parts that helps hold everything together inside the cartridge assembly. If it's worn or out of shape, you'll start seeing issues like leaks or inconsistent movement. Get a solid one back in place, and the system feels stable a