91557-ZX2-003 Orifice Collar - Overview. The 91557-ZX2-003 Orifice Collar is a critical component designed to support Honda marine engine systems. It plays a vital role in regulating fluid flow within the engine's fuel or oil system. Engineered to match factory specifications, this collar ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precision orifice collar that controls fluid flow accurately within Honda marine engines.. Genuine OEM component designed to meet Honda's exact dimensions and tolerances.. Ensures reliable performance and mechanical consistency in the fuel or oil system.. Integrates cleanly with existing hardware, seals, and housings for easy installation.. Maintains water flow and system balance critical for engine operation.. Built to Honda's factory standards, helping preserve the durability and function of your marine engine.. Why Choose Genuine OEM. Using original Honda parts like the 91557-ZX2-003 Ori