41131-ZW6-000 Pinion Gear - Overview. The 41131-ZW6-000 Pinion Gear is a critical component in Honda marine engine systems. This pinion gear is essential for transmitting rotational power from the engine's vertical shaft to the propeller shaft, playing a key role in efficient boat propulsion. Designed specifically for Honda outboard motors such as the BF2.3 and other compatible models, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Featu