ZICHAI Z8170 Series marine diesel engine is an 8-cylinder diesel engine designed for marine main propulsion applications. With a 170 mm cylinder bore and 200 mm piston stroke, the Z8170 series covers a rated power range of 300-660 kW at 1000-1500 r/min. The engine features an in-line, four-stroke, direct injection, turbocharged and intercooled design, with multiple power and speed configurations available for different vessel propulsion requirements. The Z8170 marine diesel engine can be matched with suitable marine gearboxes and propulsion systems for cargo vessels, tugboats, engineering vessels and other commercial marine applications.