Cummins marine propulsion engine B series:

Unmatched peformance driven through a perfectly matched turbocharger and a new 24-valve cylinder head that delivers industry-leading power density
Cummins marine propulsion engine L series:

Quiet operation, including an 80-percent reduction in noise at idle, is one of the many benefits from the common-rail fuel system
Enhanced sociability from the high-pressure common-rail design virtually eliminates smoke and improves the whole boating experience
Maximize vessel performance and access comprehensive vessel diagnostic information via SmartCraft® electronics