Coastal Wave Marine lists Cummins X15 marine diesel engines for new installations and repower projects. Cummins publishes X15 marine propulsion ratings from 450 to 600 hp for recreational and commercial applications. The suitable model depends on your vessel, required power, operating speed, and duty cycle. Browse the full range of Cummins marine engines.

The Cummins X15 is a 14.9-liter, inline six-cylinder, four-stroke diesel engine with turbocharging, aftercooling, and a high-pressure common-rail fuel system. Cummins offers X15 marine propulsion and auxiliary configurations, with specifications and emissions certifications varying by model and application. Review the Cummins X15 marine specifications for manufacturer details.

When selecting an X15 for a new build or repower, compare the engine’s horsepower and rated RPM with your vessel’s operating profile, gearbox ratio, propeller requirements, and installation space. For a replacement, check the existing engine model and serial number, mounting dimensions, cooling and exhaust arrangements, controls, and electrical connections. An engine’s horsepower alone does not establish that it will match your drivetrain.

If you are comparing power options, explore Cummins QSM11 marine engines and Cummins QSL9 marine engines. Compare the complete engine ratings and intended duty before choosing a model.

To request a quote, provide your vessel make and model, intended application, required horsepower and rated RPM, existing engine details if this is a repower, gearbox make and ratio, and delivery location. Photos of the engine data plate and installation can help identify the right configuration. Contact Coastal Wave Marine about a Cummins X15 to discuss model options, availability, warranty eligibility, and delivery terms.