Cummins N855-M400 Marine Engine | 400HP Continuous Duty Diesel Power
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Cummins N855-M400 Marine Engine | 400HP Continuous Duty Diesel Power
Category:
Power:
298kW [400HP] @2100 r/min
Rating type:
Medium Continuous
Type:
6-cylinder, in-line
Application:
Marine Propulsion
Packing Size:
Weight:
1441 kg (3177 lb)
HS Code:
840810
Technical Specification of Cummins N855-M400 Marine Engine | 400HP Continuous Duty Diesel Power
Engine Model
N855-M400
Fuel System
PT (CENTRY AND V.S.)
Rated Power
298 kW (400 HP) @ 1800 RPM
Peak Engine Torque
Rated Speed
2100mm
Compression Ratio
14.5:1
Rating Type
Continuous Duty
Fuel Consumption at Rated Speed
77.2 L/hr (20.4 gal/hr)
Bore
140mm
Cooling system
Heat exchanger & Sea water pump
Stroke
152mm
Firing Order
1-5-3-6-2-4
Aspriration
Turbocharged / LTA
Dry Weight
1441 kg (3177 lb)
Displacement
14.0 L (857 in³)
Emission
IMO Tier I (MARPOL 73/78 Annex VI)
General Information of Cummins N855-M400 Marine Engine | 400HP Continuous Duty Diesel Power
Cummins N855-M400 Marine Engine | 400HP Cummins N855 Marine Continuous Duty Diesel Power for Boats & Work Vessels
Product Description
- The Cummins N855-M400 Marine engine is a 14.0-liter, 6-cylinder, turbocharged marine diesel engine designed for continuous-duty propulsion applications. Manufactured by Chongqing Cummins Engine Co., Ltd., this engine complies with IMO Tier I NOx emission standards, making it an excellent choice for environmentally conscious operators of workboats, tugs, fishing vessels, and other marine service crafts.
- Engineered for reliability and performance, the N855-M400 provides 298 kW (400 HP) at 1800 RPM with consistent fuel efficiency across its operating range. It integrates a PT (CENTRY and V.S.) fuel system, Low Temperature Aftercooling (LTA), and a durable construction that ensures superior operational life in harsh marine conditions.
Specifications
| Parameter | Details |
|---|---|
| Engine Model | Cummins N855-M400 |
| Configuration | 6-cylinder, in-line |
| Displacement | 14.0 L (857 in³) |
| Bore x Stroke | 140 mm x 152 mm |
| Aspiration | Turbocharged / LTA |
| Fuel System | PT (CENTRY and V.S.) |
| Rated Power | 298 kW (400 HP) @ 1800 RPM |
| Governor Type | Mechanical |
| Rating Type | Continuous Duty |
| Compression Ratio | 14.5:1 |
| Dry Weight (with HE system) | 1441 kg (3177 lb) |
| Fuel Consumption @ 1800 RPM | 77.2 L/hr (20.4 gal/hr) |
| Idle Speed Range | 575–1972 RPM |
| Emission Compliance | IMO Tier I (MARPOL 73/78 Annex VI) |
Product Advantages
- Proven Reliability: Built on Cummins’ legendary N855 platform, trusted worldwide in marine and industrial sectors.
- Low Maintenance Requirements: Simplified mechanical systems reduce downtime and lifecycle costs.
- Fuel Efficient: Optimized for marine duty with consistent performance across varying load conditions.
- Emission Compliant: Meets IMO Tier I standards for NOx, supporting sustainable operations.
- Flexible Integration: Compatible with a range of vessel configurations and gear systems.
Key Features
- Continuous Duty Rating: Designed for operations requiring full power 24/7, ideal for propulsion applications like tugs and pushboats.
- Low Temperature Aftercooling (LTA): Enhances engine durability and performance under high-load conditions.
- Durable Cast-Iron Construction: For longevity in harsh marine environments.
- Advanced Fuel System: PT fuel system ensures precise fuel delivery for consistent output and efficiency.
- Governor System: Includes adjustable droop control (6%) for stable engine speed management.
Applications
- Tugboats & Pushboats
- Fishing Vessels
- Ferries
- Offshore Utility Vessels
- Workboats and Cargo Barges
- Net Draggers and Transport Boats
Download of Cummins N855-M400 Marine Engine | 400HP Continuous Duty Diesel Power Datasheet
Model
Power
Emission
Datasheet
Drawing
Service Manual
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