37202-ZW5-U01 Tube (4X7X8000) - Overview. The 37202-ZW5-U01 Tube (4X7X8000) is a genuine Honda marine engine part designed for the speed meter system. This specialized tube plays a critical role in the accurate measurement and transmission of speed data from your marine engine, helping to maintain optimal vessel performance. Crafted to match factory specifications with a 4mm inner diameter, 7mm outer diameter, and 8000mm length, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Honda genuine part, ensuring quality and reliability.. Designed specifically for use in Honda marine speed meter systems.. Meets precise factory dimensions and tolerances for perfect fit.. Provides accurate and consistent speed measurement transmission.. Built to withstand marine environmental conditions for long-term durability.. Seamlessly integrates with original Honda engine components to maintain system integrity.. Why Choose Genuine OEM.