Details
Cummins NTA855-DM240 Marine Auxiliary Engine | 240kW CCEC Diesel Engine
The Cummins NTA855-DM240 marine auxiliary engine is a reliable 240kW (322HP) diesel power solution designed for continuous-duty marine generator applications. Manufactured by CCEC (Chongqing Cummins Engine Co., Ltd.), this engine combines proven Cummins engineering with robust marine adaptability, making it an ideal choice for ship onboard power supply systems.
As a professional supplier, HekoPower provides original Cummins NTA855-DM240 engines with complete certification support, stable supply capability, and global delivery services.
Tech Specs of NTA855-DM240
General Engine Data
Engine Model: Cummins NTA855-DM240
Type: 6 Cylinders in Line
Displacement: 14 L
Bore * Stroke: 140 * 152
Net Weight (with flywheel & alternator): 1420 Kg
Overall Dimension: 1453mm*947mm*1296mm
Engine Configuration No.: D093641MX02
Key Performance Data
Rated Power/Standby Power: 240 kW/322HP,264 kW/354HP
Rated Speed: 1500 rpm
Low Idle Speed: 575-650 rpm
Fuel Consumption (Running Speed): ≤ 239 g/kW.hr
Torque/Rated Speed: 1681 N.m @ 1500 rpm
More Technical Data
Certification: CCS/IMO Certificates
Aspiration: Turbocharged/Afftercooled
Compression Radio: 14.5:1
Fuel System: Cummins Pressure Time (PT Pump)
Starting System: Electrical starting motor (12V/24V)
Lowest Starting Temp Without auxiliary system: -12℃
Engine Cooling System: Sea water pump, Heat exchanger, Wet exhaust manifold
Cooling Method: Water cooling
Real-World Application Scenarios for the NTA855-DM240
The Cummins NTA855-DM240 marine auxiliary engine is engineered specifically for consistent, heavy-duty shipboard power generation. Operating a commercial vessel requires absolute electrical stability. This engine delivers exactly that. It is designed to run at a continuous 1500RPM to maintain a stable 50Hz electrical frequency.
You will typically find the NTA855-DM240 functioning as the primary auxiliary power for commercial vessels. It powers essential onboard systems including navigation equipment, refrigeration units, winch motors, and crew habitability systems. When vessels require a dependable main generator engine for multi-week voyages, the 14L displacement provides the thermal mass and durability needed for uninterrupted operation.
Beyond standard operations, the NTA855-DM240 is frequently deployed as an emergency generator engine. In the event of a main power failure, marine regulations demand rapid start-up and immediate load acceptance. The 240kW Cummins marine generator engine excels in this role. It provides the critical safety net required for steering, emergency lighting, and bilge pumps. HekoPower supplies these engines to shipyards and fleet operators who cannot compromise on reliability.
Technical Nuances: Beyond the Basic Specifications
When comparing the NTA855-DM240 to standard industrial engines, the engineering differences are substantial. The NTA855-DM240 6 cylinder marine engine is not just a modified truck engine. It is a purpose-built marine genset engine designed for the harsh realities of the ocean.
A key differentiator is the NTA855-DM240 turbocharged aftercooled engine configuration. Specifically, it utilizes a highly efficient water-air intercooler. Marine environments offer a unique advantage: an endless supply of cold seawater. The engine leverages this through the NTA855-DM240 with sea water pump and heat exchanger setup. This cooling method is far superior to standard radiator cooling. It pulls raw seawater through a primary circuit to cool a closed freshwater loop. This prevents internal engine corrosion while maintaining optimal operating temperatures even under the 264kW overload power capacity.
The structural foundation of the NTA855-DM240 14L marine diesel engine is legendary. It features a 140mm 152mm bore stroke ratio. This long-stroke design is the secret behind the massive NTA855-DM240 torque at 1500 RPM. High torque at lower speeds means the engine handles sudden electrical load spikes—like a large crane or compressor starting up—without dropping RPM or fluctuating the voltage.
For engineers matching specific builds, this unit falls under engine configuration D093641MX02 and corresponds with NTA855-DM240 CPL CQ125. Understanding these exact control parts lists ensures you receive the correct internal components for the 240kW output.
Comparison: NTA855-DM240 vs NT855-M240
A common question from buyers is the difference between these two models. Understanding this helps in selecting the right replacement engine for 300kVA marine generator applications.
- NTA855-DM240: Features an "A" indicating an Aftercooler. This provides better thermal efficiency, lower exhaust temperatures, and is specifically designed for higher ambient conditions often found in engine rooms. It is the preferred choice for modern marine auxiliary power.
- NT855-M240: The non-aftercooled version. While simpler, it lacks the efficiency and power density of the NTA series.
HekoPower Recommendation: For marine gensets and ship electronics power, always opt for the NTA855-DM240 for superior performance.
Essential Maintenance and Marine Genset Replacement
Replacing a marine generator is a complex logistical and engineering task. HekoPower serves as your dedicated NTA855-DM240 engine replacement supplier to simplify this process. When you need to replace a Cummins NTA855 marine auxiliary engine, swapping like-for-like is always the most cost-effective route.
The NTA855-DM240 replacement engine drops perfectly into existing footprints for older N855 series generators. This minimizes fabrication work in the engine room. When planning a NTA855-DM240 retrofit marine generator project, you must account for the exact NTA855-DM240 dimensions and weight with flywheel. Proper alignment with your existing alternator is critical. Even a millimeter of misalignment can cause catastrophic bearing failure.
A common maintenance misconception revolves around the fuel system. Operators often attempt to manually tune the NTA855-DM240 PT fuel system to increase power. The Cummins PT fuel pump system for NTA855 marine engines is mechanically calibrated. It relies on internal pressure and time to meter fuel accurately. Attempting to adjust the throttle shaft without a proper calibration stand will ruin the NTA855-DM240 fuel consumption curve and likely increase exhaust temperatures beyond safe limits. Always rely on genuine replacement parts and authorized calibration if the fuel pump requires service.
As a supplier, HekoPower advises fleet managers to maintain strict service intervals for the raw water system. The sea water pump impeller and the heat exchanger tube bundle require annual inspection. Neglecting these components is the leading cause of overheating in the NTA855-DM240 322HP marine auxiliary engine.
Exploring the N855-DM Series
The 240kW Cummins marine auxiliary generator wholesale market demands precision. While the NTA855-DM240 perfectly serves vessels requiring roughly 300 kVA of electrical power, different ship sizes dictate different power nodes. HekoPower supplies the complete CCEC Cummins marine auxiliary engine portfolio to ensure your specific load demands are met without under-loading or over-stressing the power plant. If your electrical requirements differ from the 240kW output, we carry the full range of alternative configurations within this engine family.
Cummins N855-DM Series, Marine Auxiliary Engines for commercial and recreational applications, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes NT855-DM180, NT855-DM205, NT855-DM230, NT855-DM240, NTA855-DM264, NTA855-DM284, NTA855-DM287, NTA855-DM306, NTA855-DM313,NTA855-DM317. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
Frequently Asked Questions (FAQs)
How do I get the Genuine Cummins NTA855-DM240 agent price?
As an established engine supplier, HekoPower offers competitive B2B pricing for shipyards, fleet operators, and wholesale buyers. Contact our sales team directly with your project details to receive the current agent price for the NTA855-DM240 240kW generator engine.
Are these engines compliant with current marine regulations?
Yes. The engines we supply can be configured as a CCS/IMO2 certified Cummins marine generator engine. They meet strict maritime emissions and safety standards required for international shipping routes.
What are the standard NTA855-DM240 engine lead time and packing details?
Lead times vary based on current factory inventory and your specific configuration requirements. Typically, standard builds have a lead time of 15 to 30 days. The engines are securely bolted to heavy-duty export wooden skids, wrapped in moisture-barrier film, and crated in fumigated wooden boxes suitable for ocean freight.
Is the NTA855-DM240 suitable as a repower engine for other brands?
Absolutely. The NTA855-DM240 replacement for existing marine genset applications is highly popular. Its robust, straightforward mechanical design makes it an excellent NTA855-DM240 repower engine to replace complex, electronics-heavy auxiliary engines that frequently fail in harsh marine environments.
Where can I find the precise fuel consumption curve?
Fuel consumption varies based on the actual electrical load applied to the alternator. HekoPower provides the official CCEC NTA855-DM240 performance datasheets and fuel consumption curves to our clients upon request, ensuring you can accurately calculate voyage running costs.
