📦 Product Description

For vessels operating on demanding trade routes or offshore assignments, uninterrupted auxiliary power is essential. The Cummins NTA855-DM, rated at 317 kW (425 HP) @1500 RPM, delivers stable onboard electricity for cargo ships, tankers, tugs, and offshore platforms, ensuring all critical shipboard systems—from navigation to safety—run flawlessly.

Built on Cummins’ trusted 14-liter, 6-cylinder platform, this engine combines fuel efficiency, rugged reliability, and IMO Tier I compliance, making it a top choice for fleet managers seeking dependable marine auxiliary power worldwide.

📊 Key Specifications

• Engine Model: Cummins NTA855-DM317
• Prime Power: 317 kW (425 HP) @ 1500 RPM
• Overload Capability: 351 kW (470 HP) – 10% (1 hr in 12 hrs)
• Configuration: 6-cylinder inline, 4-stroke diesel
• Displacement: 14 L (855 in³)
• Bore × Stroke: 140 × 152 mm (5.50 × 6.00 in)
• Aspiration: Turbocharged & Aftercooled (JWAC)
• Compression Ratio: 14.0:1
• Fuel System: Cummins PT Direct Injection

• Fuel Consumption:

  • 100% Load: 75 L/h (19.8 gal/h) – 0.201 kg/kWh

  • 75% Load: 57.4 L/h (15.2 gal/h) – 0.205 kg/kWh

  • 50% Load: 39.5 L/h (10.4 gal/h)

• Exhaust Gas Temp: 524°C (975°F)
• Air Intake Flow: 864–919 cfm (408–434 L/s)
• Cooling System: JWAC (Heat Exchanger or Keel Cooling)
• Lube Oil Capacity: 47 L (12.7 gal)

• Dry Weight: 1315 kg (engine only) / 1420 kg (with heat exchanger)

✅ Value for Shipowners & Fleet Managers

• Reliable Continuous Power: Prime-rated for 24/7 operation with 10% overload margin.
• Lower OPEX: Excellent fuel efficiency reduces long-term operating costs.
• IMO Tier I Certified: Fully compliant with MARPOL Annex VI for global trading routes.
• Proven Platform: Built on Cummins’ N-series heritage trusted across commercial fleets.

• Simplified Maintenance: Inline-6 design with easy access points reduces service time in tight engine rooms.

🔧 Technical Differentiators

• JWAC Cooling System: Delivers thermal stability in warm seawater conditions.
• PT Fuel Injection: Precise metering ensures cleaner combustion and optimized fuel burn.
• Overload Capability: 10% reserve power for peak electrical demand scenarios.

• ISO-3046 Performance Standards: Certified for accuracy and reliability in marine duty.

🚢 Applications

• Continuous-duty marine generator sets
• Auxiliary power for cargo ships, tankers, and OSVs
• Hydraulic deck equipment (winches, cranes, pumps)

• Emergency/fire pump backup systems

📦Request a Detailed Quote for Your Needs

Each and every product manufactured is tested, inspected and is guaranteed to meet the performance specitications.