At Casco Bay Diesel & Injection Service, we’re the go-to mechanics for commercial fishing boats across Maine, expanding our expertise from Portland, Maine to Hyannis, Massachusetts on Cape Cod.
Whether you’re hauling traps or dragging nets, our team is ready to step in, diagnose, and repair—ensuring your engine runs at peak performance. We’ll get you back on the water fast, so you can keep your business thriving without missing a catch.
If the answer you seek is not here, please feel free to contact us and ask all the questions you want.
It depends on your engine make and model. All engines have different criteria to meet. Contact us with your engine make and model and we can advise you further.
Yes, we do.
Yes. As an authorized dealer, we have all the correct tooling required.
If your CAT, Cummins, or Detroit Diesel (now MTU) is out of warranty, then simply contact our diesel engine shop right away. We look forward to the opportunity to show you what real personal service looks like.
"Mr. Chamberlain’s work ethic and experience throughout the retrofit, coupled with his willingness to teach, instilled a higher level of expertise on our ship GRAND ISLE I would have not believed possible. Without his devotion to task completion, which included seven-day work weeks often late into the night and on holidays, GRAND ISLE certainly would not have been prepared to resume patrol status as scheduled. On behalf of my entire crew, I wish to thank Mr. Chamberlain for a job well done."
United States Coast Guard