Old Tacoma Marine, Inc.

Washington Iron Works

Washington Iron Works was a Seattle-based manufacturing company that built machinery for the Northwest's logging industry. In the 1920s, WIW partnered with mechanical engineer Adrian Estep to begin producing a line of diesel engines that powered logging equipment and a variety of local workboats. From 1921 to 1951, Washington Iron Works built more than 600 diesel engines, which developed a reputation as being reliable and easy to service.

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Operation & Repair Manual
Map of Known Remaining WIW Engines

a heavy-duty Washington Iron Works diesel engine, still on the factory floor