91352-V15-003 O-Ring (2.4X66.6) - Overview. The 91352-V15-003 O-Ring (2.4X66.6) is a precision-engineered sealing component within Honda marine engine systems. It plays a critical role in maintaining the integrity of the fuel or fluid systems by preventing leaks and ensuring proper sealing, which supports optimal engine performance and durability. Designed with exact dimensions of 2.4 mm thickness and 66.6 mm diameter, it ensures seamless integration with existing parts, maintaining optimal perf