Casco Bay Diesel started as a one man operation in 1994 by Bob Chamberlain and his wife Cathy.

His goal was just to provide more personal attention to his customers in the marine and heavy equipment industry, servicing engines, transmissions, and other related components on just about anything with a diesel engine.

In 2018, Bob wanted to focus more on working in the shop and diagnostic work- which is his passion. He sold the company to his daughter Angela and her husband Galen Gullatt.

That same year, Casco Bay Diesel acquired “Cornell Diesel”, which had been a fuel injection pump shop in Portland for over 50 years, and the company became Casco Bay Diesel and Injection services.

With the new fuel shop and several new engine dealerships, we have grown from a one-man band to 2 fully authorized services centers, 9 service trucks and primarily covering the coastlines of New England.