28443-ZV1-033 Spring Retainer - Overview. The 28443-ZV1-033 Spring Retainer is a critical metal component in Honda marine engine systems. It functions within the recoil starter assembly, securely holding the starter spring in place to maintain proper tension and reliable operation. This part is essential for ensuring smooth mechanical motion and efficient engine starting. Designed to meet precise factory specifications and dimensions, it ensures seamless integration with existing parts, maintain