91308-P3R-T01 O-Ring (26.2X2.4) - Overview. The 91308-P3R-T01 O-Ring (26.2X2.4) is a critical sealing component used in Honda marine engine systems. It functions to prevent fluid and gas leaks, maintaining system integrity and optimal engine performance. Manufactured to Honda's OEM specifications, this O-ring ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisely sized O-ring with 26.2mm outer diameter and 2.4mm thickness for ef