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Optomized gear ratios.


Changing the way outboards are built.

Engineering the transfer of power on the industry's first horizontal crankshaft outboard motor presented new design opportunities. The ability to CHANGE a variety of gear ratios for different applications with easy access to gear changes. Lightweight helical gears transfer the power quietly and for the first time, our quick-change gear system provides a targeted mix of speed, torque and fuel economy. From singles to quads, trolling to cruising, step bottoms, deep vees or cats, the 557 can be perfectly matched for virtually any vessel. Setups as unlimited as the variety of requirements - impressive and unprecedented.