Marine Diesel Engines | John Deere US John Deere marine engines are powerful, reliable, quiet, and fuel efficient. Engines offer expanded power from 60 to 559 kW (80 to 750 hp). High torque and low rated RPM provides excellent vessel control and reliable auxiliary drives. All engines are backed by our support network of more than 4,000 service locations.Recreational · Commercial Marine Engines · See What's New Marine Engines and Generators | Cummins Inc. Jun 06, 2016Over 100 years later, Cummins continues its legacy of providing reliable, durable diesels to the marine market with a broad range of power 5.9 to 95 liters for commercial, government and recreational applications. Cummins marine engines and generators are engineered to meet the durability and performance needs of marine applications.