ZICHAI 6N280 Series marine diesel engine is a 6-cylinder medium-speed diesel engine designed for marine main propulsion applications. With a 280 mm cylinder bore and 410 mm piston stroke, the 6N280 series covers a rated power range of 1470-2942 kW (2000-4000 PS) with multiple rated speed configurations from 750-825 r/min. The series offers a wide range of power ratings to meet different vessel propulsion requirements and is suitable for cargo vessels, engineering vessels, tugboats and other commercial vessels. Different 6N280 engine models are available to match vessel design, marine gearbox and propulsion system requirements.