Certified full service dealer of Cummins Marine Engines, Onan Generators, and ZF Transmissions. Marine Diesel Inc. is based in Charleston, SC and provides quality local, national, and global marine diesel engine repair and services. We have experience with all phases of your marine diesel engine, engine controls, marine transmissions and generator repair.
Owner/Operator, Tony Godwin, is known worldwide for both his professionalism and expertise. Marine engines work in a very dynamic environment under much different load conditions than other engines and the demands put upon them are high. A high performance diesel engine is the perfect workhorse for your marine vessels and a well-maintained diesel engine should last for the life of your boat.
Owner/Operator, Tony Godwin, is known worldwide for both his professionalism and expertise. Marine engines work in a very dynamic environment under much different load conditions than other engines and the demands put upon them are high. A high performance diesel engine is the perfect workhorse for your marine vessels and a well-maintained diesel engine should last for the life of your boat.
Reviews (11)
Daniel Riley
Apr 02, 2021
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Jonathan Parmet
Jun 21, 2020
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Steven Holz-Meister
Jan 23, 2020
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Steven Goodyear
Oct 11, 2019
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With out question Tony, Judy & crew are a 5 star operation ! From start to finish. They diagnosed the problem I called about and caught a more serious problem that would have left us stranded. Fitting us in even though we weren't local and getting us on the schedule and completed on time and on budget. True professionals that I highly recommend.
Paul Wilson
Dec 28, 2018
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MDI just successfully completed an 80-85% new component re-build of the Caterpillar engines on my Hatteras 64 motor yacht. Tony and his family team did a super job on all aspects of this major project. We found MDI to be professional, highly competent, honest, and a real pleasure to work with. We would highly recommend MDI to anyone needing his marine services!!
Gary Moskaluk
Dec 13, 2018
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Tony and Judy are awesome people to work with..even though our new boat was in Charleston and we are in florida, i had complete confidence the job would be done correctly...just talk to them for 2 minutes and you will understand what I mean...professional, trustworthy, and honest...what more can you ask for? Highly recommend them to anyone!
Ronnie Fields
Jan 29, 2018
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I have had the pleasure of having Tony Godwin with Marine Diesel Inc (MDI) on our boat twice now, both times on short notice and they have always done a fabulous job for us. They are very knowledgeable and easy to work with. Thanks Tony.
Capt Ronnie Fields
63' Ricky Scarbough “Big OH”
56' Island Boat Works “Trophy Box”
Capt Ronnie Fields
63' Ricky Scarbough “Big OH”
56' Island Boat Works “Trophy Box”
Emmett Meister
Jan 22, 2018
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David Cawton
Aug 17, 2017
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Wesley Kruger
Aug 12, 2017
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David Nagle
Jun 20, 2017
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THE BEST !! Can't say enough positive things about Tony and Judy at Marine Diesel. I'm a new boat owner who unexpectedly needed service while passing through Charleston on our first voyage. Tony went out of his way to get to us quickly (then NEXT day!!) and solve the problem. Helped us diagnose and address multiple issues. No pressure. Fair pricing. Judy (Mrs. Tony I think?) is the office manager, and was super helpful as well. They return calls. They do what they say, on time. Very professional. I absolutely recommend. Thanks Tony and Judy!
