SUZUKI Motor Corporation has developed a new technology that applies a corrosion-resistant anodising treatment which can withstand high temperatures to the engine components of outboard motors, including the cylinder block, cylinder head, and crankcase.
The treatment has been adopted to some specifications of the DF140B from August 2024, a first for mass-production models. It will progressively be adopted to other models’ specifications as well.
Outboard motors pump up large amounts of water such as seawater to cool the engine. This makes corrosion prevention treatments for the cooling water passages vital. The technology developed by Suzuki improves corrosion resistance against seawater by the uniformly applied anodising treatment to the engine components that come in contact with the cooling water.
Additionally, this new technology contributes to carbon neutrality by reducing CO2 emissions by approximately 50%, compared to conventional corrosion resistance surface treatment processes.
Shuichi Mishima, Suzuki’s executive general manager, Marine Operations, said: “The technology that we have adopted in Suzuki’s outboard motors not only enhances product quality through improved corrosion resistance but also contributes to carbon neutrality by reducing CO2 emissions during manufacturing.”
“This is a world-first technology for mass-produced outboard motors. We have taken on the challenge of developing new technologies as Team Suzuki, and have successfully developed anodising treatment for mass-produced engine parts,” said Mishima.
