41173-ZY3-A00 Speed Sensor Tube - Overview. The 41173-ZY3-A00 Speed Sensor Tube is a genuine OEM part essential for Honda marine engine systems. This tube houses and protects the speed sensor, a critical component that accurately measures boat speed, ensuring reliable data for optimal engine management. Crafted to meet strict factory specifications, this tube guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Designed specifically