91317-PA9-003 O-RING (33.2X2.4) - Overview. The 91317-PA9-003 O-RING (33.2X2.4) is a genuine Honda marine and automotive engine system seal, designed to support fuel and fluid system integrity by providing a reliable sealing solution. This O-ring plays a vital role in maintaining system pressure and preventing leaks, ensuring the engine operates efficiently and reliably. Made to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and