16734-ZY9-020 Fuel Tube Stay - Overview. The 16734-ZY9-020 Fuel Tube Stay is a genuine OEM Honda component engineered to securely hold the fuel tube in place within Honda marine engine fuel systems. This vital rigging part supports the fuel system by preventing unwanted movement or vibration of the fuel tube, contributing to steady fuel flow and reliable engine operation. Made to Honda's exact factory specifications, the stay ensures seamless integration with existing parts, preserving the integ