13111-881-000 Piston Pin - Overview. The 13111-881-000 Piston Pin is a critical component within the Honda marine engine systems. It links the piston to the connecting rod, allowing the piston to pivot smoothly as it moves inside the cylinder. This function helps the engine to run efficiently and reliably. Engineered to match precise factory specifications, the 13111-881-000 piston pin ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features