91352-ZY1-871 O-Ring (2.0X43.5) - Overview. The 91352-ZY1-871 O-Ring (2.0X43.5) is a precision-engineered sealing component used in Honda marine engine systems, specifically supporting the Power Trim-Tilt system. This O-ring's primary role is to provide a reliable seal, preventing fluid leaks and ensuring the efficient, durable operation of the marine engine's critical systems. As an essential part of the rigging and accessories lineup, it ensures seamless integration with existing parts, mainta