38553-ZZ3-010 PTT Relay Bracket - Overview. The 38553-ZZ3-010 PTT Relay Bracket is a critical component in Honda marine engine systems designed to securely mount the Push-To-Talk (PTT) relay. This bracket supports the rigging and electrical systems, specifically accommodating the communication relay essential for efficient operation and reliable signal control. Manufactured to meet Honda factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance