Connecticut Diesel and Marine

Celebrating 40 years of outstanding customer service!

Offering a Mobile Fleet of Certified Technicians

Service Locations in Milford, CT and Montauk, NY 

Our Mission
Our Mission at Connecticut Diesel and Marine is to provide each one of our clients with the absolute best experience by offering outstanding products and exceptional customer service. With over 40 years of experience in servicing the world’s finest yachts, we pride our long-standing reputation on our fierce commitment and dedication to ensuring that we exceed our client's expectations. We treat every job; large or small, with the same attention to detail and professionalism. 

Authorized dealers for: 

  • ZF

  • Cruisair

  • Westerbeke

  • Phasor

  • Mase

  • Nanni

  • Condaria


Specializing in:

  • MAN

  • CAT

  • Detroit Diesel

  • Volvo Penta

Excellence and Professionalism 

Connecticut Diesel and Marine services most major brands including; Catepillar, Detroit Diesel, Westerbeke, Phasor, Cruisair, ZF, Borg Warner, Twin Disc, Mase, Nanni, MAN, Volvo Penta and more. With a 100% client satisfaction rating, the testimonials from our loyal clients speak for themselves. We are firm believers that each client and every task deserves the same superior care, attention to detail and quality workmanship. We put our client's needs first & foremost and are always available to answer any questions.

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Our Staff
Connecticut Diesel and Marine's friendly, knowledgeable
staff is qualified to answer all of your questions. Our Factory Trained Technicians provide you with piece of mind that you will receive outstanding results and superior service. Providing unparalleled customer service and expert service, we get the job done right the first time. Connecticut Diesel and Marine maintains the highest standards of workmanship; in doing so we provide you with the ultimate boating experience. So sit back, relax and let the professionals at Connecticut Diesel and Marine handle all of your boating needs!. We look forward to serving you.

Repairs, Sales, Service and Maintenance

Complete Marine Engine Surveys

Full Service Parts Department

Connecticut Diesel and Marine specializes in all types of Marine Engines, Transmissions, Generators and Air Conditioning Units

  • Factory Trained Certified Technicians

  • State of the Art Electronic Diagnostic Testing Equipment

  • Marine Air Conditioning and Refrigeration

  • Marine Propulsion Engines and Marine Gears

  • Water Makers, Sanitation Systems and Plumbing

  • Bow Thrusters and Generators

  • Electrical and Electronics ABYC Certified

  • Complete Marine Engine Surveys - By appointment only