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Cummins NTA855-DM306 Marine Engine | 306kW Heavy-Duty Diesel Generator Drive
The Cummins NTA855-DM306 engine is a heavy-duty 14L inline 6-cylinder diesel engine designed for marine auxiliary and generator drive applications. As part of the Chongqing Cummins NTA855 series, this model delivers 306kW (410HP) at 1500RPM, making it ideal for shipboard power systems and industrial generator sets.
This engine features a turbocharged and aftercooled design combined with Cummins’ proven PT fuel system, ensuring reliable fuel delivery and stable performance under continuous load conditions. The NTA855-DM306 marine auxiliary engine is widely used in marine generator sets, offshore equipment, and industrial power systems.
As a professional engine supplier, HekoPower provides genuine CCEC Cummins NTA855-DM306 engine assemblies with global shipping, competitive pricing, and fast lead times for international buyers.
Tech Specs of Cummins NTA855-DM306
General Engine Data
Engine Model: Cummins NTA855-DM306
Type: 6 Cylinders in Line
Displacement: 14 L
Bore * Stroke: 140 * 152
Net Weight (with flywheel & alternator): 1410 Kg
Overall Dimension: 1453mm*947mm*1296mm
Engine Configuration No.: D093641MX02
Key Performance Data
Rated Power/Standby Power: 306 kW/410HP, 317 kW/425HP
Rated Speed: 1800 rpm
Low Idle Speed: 575-650 rpm
Fuel Consumption (Running Speed): ≤ 243 g/kW.hr
Torque/Rated Speed: 1437 N.m @ 1948 rpm
More Technical Data
Certification: CCS/IMO Certificates
Aspiration: Turbocharged/Aftercooled
Compression Radio: 14.0:1
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
The PT Fuel System: Mechanical Superiority
The Cummins NTA855-DM306 PT fuel system details reveal a design that thrives in high-salt, high-humidity environments. Unlike common rail systems, the PT (Pressure-Time) system is easier to maintain at sea. HekoPower provides a full Cummins PT fuel system adjustment guide for the DM306 to ensure your injectors are always calibrated for peak performance.
Applications of the NTA855-DM306 Engine
The Cummins NTA855-DM306 generator drive engine is widely used in:
- Marine auxiliary generator systems
- Shipboard power generation units
- Offshore and port equipment
- Industrial generator sets (300–400kVA range)
- Emergency backup power systems
Its stable operation at 1500RPM makes it ideal for marine generator applications requiring reliable and continuous power output.
Power Parameters for Marine & Genset Use
This engine outputs 306kW Cummins marine generator engine power and can directly match 400kVA marine gensets. Many customers choose it as a reliable NTA855-DM306 replacement for 400kVA marine genset. It also performs as an excellent Cummins NTA855-DM306 marine auxiliary engine, providing stable auxiliary power for commercial ships, workboats, and offshore equipment. The difference between NTA855-G and NTA855-DM lies in the calibration: DM series focuses on marine auxiliary, while G series focuses on pure generator drive.
- Ship Auxiliary Systems: Ideal as a 306kW diesel engine for ship auxiliary systems providing power to winches, pumps, and onboard lighting.
- Genset Drive: The preferred Cummins NTA855-DM306 generator drive engine for 300kW to 350kW marine generator sets.
NTA855-DM306 vs Other NTA855 Models
DM306 vs DM317
- DM306: 306kW output, optimized for 300–400kVA generator sets
- DM317: higher power output for larger systems
DM306 vs NT855-DM305
- NTA855-DM306: turbocharged and aftercooled, higher efficiency
- NT855-DM305: lower performance, simpler configuration
HekoPower: Your Original CCEC NTA855-DM306 Sourcing Partner
When you buy genuine CCEC NTA855-DM306 marine auxiliary engines from HekoPower, you are choosing a partner with deep roots in the Chongqing Cummins ecosystem.
- Lead Time: We understand that "vessel down" time is expensive. We offer a Cummins NTA855-DM306 lead time China of approximately 15–20 business days for full assemblies.
- Wholesale Pricing: As a wholesale Cummins 14L diesel engine supplier, we offer factory-direct pricing that beats local distributors.
- Support: Every Cummins engine 1 year warranty supplier agreement with HekoPower includes global shipping support and technical consulting.
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.
Maintenance & Parts Availability
Maintaining a heavy-duty Cummins 306kW diesel engine requires genuine components. HekoPower stocks the complete overhaul kit for CCEC NTA855-DM306, including gaskets, bearings, and liners. Our NTA855 spare parts availability ensures that your vessel remains operational no matter where it is docked.
