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Overview of Cummins NTA855-M250 Marine Engine
The Cummins NTA855-M250 marine diesel engine is a reliable 250HP propulsion solution designed for continuous-duty marine applications. Manufactured by Chongqing Cummins (CCEC), this 14L, 6-cylinder engine delivers 187kW at 1800RPM, making it ideal for fishing boats, tugboats, and small cargo vessels.
As a professional supplier, HekoPower provides genuine CCEC Cummins NTA855-M250 engines, complete with gearbox matching solutions, global delivery, and flexible payment terms. This engine is widely recognised for its durability, fuel efficiency, and compliance with CCS and IMO marine standards.
Tech Specs of Cummins NTA855-M250
General Engine Data
Engine Model: Cummins NTA855-M250
Type: 6 Cylinders in Line
Displacement: 14 L
Bore * Stroke: 140 * 152
Net Weight (with flywheel & alternator): 1385 Kg
Overall Dimension: 1453mm*947mm*1296mm
Engine Configuration No.: D092347MX02
Key Performance Data
Rated Power: 187 kW/250HP
Rated Speed: 1800 rpm
Low Idle Speed: 575-675 rpm
High Idle Speed: 1962-2106 rpm
Rating Type: Continuous Running Power
Fuel Consumption (Running Speed): ≤ 46 L/hr
More Technical Data
Certification: CCS/IMO Certificates
Governor Type: Mechanical Control
Aspiration: Turbocharged/Aftercooled
Compression Radio: 14.5:1
Fuel System: Cummins Pressure Time (PT Pump)
Starting System: Electrical Start (24V/100AMP)
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Sea water pump, Heat exchanger, Water cooled
Applications of Cummins NTA855-M250 Marine Engine
The NTA855-M250 propulsion engine is widely used in:
- Fishing boats propulsion systems
- Tugboat auxiliary or main engines
- Inland cargo vessels
- Barges and small commercial ships
- Marine generator power packs
Its balance of power and fuel efficiency makes it particularly suitable for operators seeking low maintenance cost and long service intervals.
Fuel Consumption and Operating Efficiency
One of the key concerns for buyers is the fuel consumption rate of the Cummins NTA855-M250 at 1800RPM.
Under standard operating conditions:
- Fuel consumption is optimised by the PT fuel system
- Turbocharging improves combustion efficiency
- Suitable for continuous-duty cycles
Compared with higher horsepower models like the M300, the M250 offers:
- Lower fuel consumption
- Reduced operating cost
- Better efficiency for medium-load vessels
Comparison: NTA855-M250 vs. M300 & KTA19
NTA855-M250 vs NTA855-M300 for Fishing Boats
While both share the 14L block, the M250 offers a more conservative power curve. For small commercial ships, the M250 provides better fuel economy and longer intervals between overhauls. If your vessel requires higher speed for transit, the M300 may be suitable, but for steady trawling, the NTA855-M250 vs NTA855-M300 comparison usually favors the M250 for durability.
NTA855-M250 vs KTA19
The NTA855-M250 vs KTA19 comparison for fishing boats often comes down to space and budget. While the KTA19 offers higher horsepower, the NTA855-M250 is often the "Goldilocks" zone for mid-sized vessels, offering lower initial cost and excellent parts availability compared to the larger 19L engines.
Genuine Parts & Maintenance Support
Owning a Cummins NTA855-M250 marine propulsion engine means access to the world's largest diesel support network. We stock a full range of Genuine parts for Cummins NTA855-M250, including the NTA855-M250 PT fuel pump replacement and overhaul kits. Our technical team can assist with Low idle speed adjustment NTA855-M and provide the NTA855 marine engine maintenance schedule to keep your vessel running smoothly.
Cummins N855-M Series (N855 Marine Engine), marine propulsion engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes NTA855-M350, NTA855-M400, NTA855-M450, NTA855-M200, NTA855-M220, NTA855-M240, NTA855-M250, NTA855-M270, NTA855-M300. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
