91301-PLC-000 O-Ring (7.47X3.6) - Overview. The 91301-PLC-000 O-Ring (7.47X3.6) is a precision-engineered sealing component used in Honda marine engine systems, particularly supporting the fuel injector subsystem. This essential part ensures reliable sealing within fuel injection assemblies, preventing leakage and maintaining consistent fuel delivery, which is critical for efficient engine operation. Manufactured to meet exact Honda specifications, it ensures seamless integration with existing p