17612-KR3-600 Collar - Overview. The 17612-KR3-600 Collar is a crucial component designed for support in Honda marine engine systems. It primarily functions as a fuel tank mounting collar, providing stability and secure attachment within the fuel tank assembly. Manufactured to strict OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precision-engineered collar designed for fuel tank mounting applications in Hon