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Marathon Diesel Repair is a Yanmar certified dealer providing parts sales and services in the Middle Keys since 1995. We specialize in Yanmar as no other, we maintain a large inventory of Yanmar parts in the Keys.

Your dock or Our dock, our certified technicians are prepared and skilled to better service your marine engine needs.

Although we are not authorize Dealers we can service CAT, Cummins, Volvo, Mercruiser and most other brands. We have our electrical team ready to cover any of your Generator need, no matter what brand.

Original Yanmar Parts Certified Techs. Rebuilt Engines Reman. Parts Mobile Service Dock Availible Sales and Service: Yanmar Suzuki Nanni Cat Fischer-Panda Kubota And Most others!