13622-PM3-020 Tb Guid Plate - Overview. The 13622-PM3-020 Tb Guid Plate is a critical component within the timing belt system of Honda marine engine systems. Serving as a timing belt guide plate, it supports the proper alignment and reliable function of the timing belt, which is essential for synchronized mechanical operation and overall engine performance. Designed to meet exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and dura