Global Alco 251 Diesel Engine Specialists

At JB Marine Services, we are dedicated to providing expert diesel engine repairs and overhauls to clients across the globe. With over 40 years of hands-on experience, we specialize in Alco 251 diesel engines for marine, stationary, and rail applications, offering on-site services no matter how remote the location.

Our Story

JB Marine Services is led by Jack Bourassa, a factory-trained Alco specialist who began his career at Canadian National Railway. From those early days working on Alco 251 engines, Jack quickly developed a passion for precision engineering and built a reputation for delivering exceptional workmanship.

Over the years, Jack has travelled extensively across North America, South America, Europe, India, Africa, and the Middle East, supporting clients in critical industries such as shipping, power generation, and rail transport. His keen eye for detail and deep knowledge of Alco engines have earned the trust of clients worldwide.

What sets JB Marine Services apart is not only our technical expertise but our commitment to delivering reliable service in the most challenging environments. Whether working aboard a vessel at sea, in a remote power station, or on locomotives in harsh terrain, we always go the extra mile to ensure engines are restored to peak performance.

Why Choose JB Marine Services?

• Alco Factory-Trained Specialist with 40+ Years of Experience
• Global On-Site Diesel Engine Repairs & Overhauls
• Rapid Response – No Location Too Far or Too Remote
• Comprehensive Knowledge of Alco 251 Engines
• Dedicated to Minimizing Downtime and Maximizing Performance

We understand how costly engine breakdowns can be. That’s why we’re committed to providing fast, efficient, and reliable service to get your engines back in operation – wherever you are in the world.

Trusted Worldwide

Our reputation is built on the positive feedback of happy clients across the globe. From shipping companies to industrial plants and rail operators, JB Marine Services is the trusted partner for keeping Alco engines running smoothly.