13400-ZY6-010 Bal Hldr Case - Overview. The 13400-ZY6-010 Bal Hldr Case is an essential component in Honda marine engine systems. This balancer holder case plays a crucial role in supporting the engine's balancing mechanism, helping to reduce vibrations and maintain smooth mechanical operation. Designed for seamless integration, it ensures maintenance of optimal performance and durability throughout the engine's life cycle.. Key Features. Genuine OEM Honda part engineered to match exact factory