Diesel Engine Service


Bayside Diesel Service has a combined diesel engine service experience of more than 60 years. We have experience specializing on MAN for over 30 years and over 20 years on YanMar engines.


We perform all facets of work on these engines from complete overhauls, tune-ups, valve sets and block replacement to basic maintenance, like oil and fuel filter changes. We also perform injector pop-testing and engine room cleaning and painting.


Bayside Diesel performs an average of 7 repowers every year and our clientele is rapidly expanding.

Convenience and Mobility

  • Drive-Up Service

    We offer the boater drive-up service at one of our over-sized service slips, which are conveniently located in downtown Mystic.
  • Mobile Service Vehicles

    We also have 5 road-ready service vehicles ready to travel to your location.
  • Marine Service Vessel

    For boaters permanently located, or simply visiting, the islands off the coast of Massachusetts, Connecticut, Rhode Island and New York, we have our 40' full-service vessel ready to run to your dock. We have done a number of complete rebuilds in this way.