165 series diesel engine with cast iron one-piece body, tie rod, one cylinder one head, combined with a piston oil cooling nozzles, wet replaceable cylinder liners, high efficiency plate heat exchanger, the integral fuel injection pumps and three water-cooled compartment hot proofed wall exhaust systems and other advanced structures and systems, the diesel engine, it is able to quickly and reliably start and work correctly. in a variety of complicated condition 165 series diesel engine is compact, light weight, high power characteristics, the specific power is at the leading position comparing with the similar products internationally; it is with little vibration, low noise, low fuel consumption, long life and reliability, simple maintainability So it is the excellent power for marine propulsion, auxiliary ships, stationary and mobile power plants, mining machinery, oil machinery, railway locomotives etc.