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Cummins offers a complete line of variable speed propulsion solutions for marine applications, including mechanical and electronic engines. Learn more about the features, benefits and certifications of the K, N and Quantum Series engines.
- Kta50
Twin Cummins turbochargers optimized for marine usage....
- Qsk19
Qsk19 - Marine Propulsion Engines | Cummins Inc.
- Kta19
Covered by a comprehensive one year warranty and backed by...
- Kta38
Twin Cummins turbochargers optimized for marine usage....
- Qsk95
Qsk95 - Marine Propulsion Engines | Cummins Inc.
- Gensets
Every major component of our marine generator sets,...
- Qsk50
Qsk50 - Marine Propulsion Engines | Cummins Inc.
- Recon Engines
ReCon™ marine engines offer a combination of reliability,...
- Kta50
Cummins Marine offers advanced diesel and natural gas engines, generator sets, and hybrid, electric, and fuel cell options for commercial, government, and recreational marine applications. Find the best power for your vessel, request a quote, and access resources and warranty coverage.
Engine Design – Unmatched performance driven through a perfectly matched turbocharger and a new 24-valve cylinder head that delivers industry-leading power density. Maximize vessel performance and access comprehensive vessel diagnostic information via SmartCraft ® electronics.
Cummins marine engines have been engineered to meet the durability and performance needs of marine applications and seawater cooling options and controls seamlessly integrated to ensure the propulsion for your vessel meets your needs.
Our marine engines provide the dependability and longevity needed for passenger vessels. Unparalleled support. Connect with our Cummins Care experts online via email, social media or direct chat for 24/7, easy-to-access support. Unrivaled performance.
Cummins QSB 6.7 Specifications. QSB 6.7 and QSB 6.7 Slimline Heater Supply Connection. Use coolant return elbow behind alternator for return connection. The Cummins factory was asleep on this one… “requires a customized Aftercooler and Transmission oil cooler mount to fit” — One full day in the shop to sort it out.
The Cummins marine version of the 6CTA 8.3 has evolved through many versions and horsepower ratings since it was released in the early 1990’s (about 24 years ago) as a 6CTA 8.3M-1 “300C”, but all of them still share the same basic base engine specs: