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Cummins NTA855 Series Marine Engine

Cummins NTA855-M400 Marine Engine

Power:

400 HP / 298 kW @ 1800 RPM

Rating type:

Continuous

Type:

6-cylinder

Application:

Marine Propulsion

Packing Size:

Weight:

3150 lbs / 1430 kg

HS Code:

840810

Technical Specification of Cummins NTA855-M400 Marine Engine

Engine Model

NTA855-M400

Fuel System

Cummins PT System

Rated Power

298kW [400HP] @1800 r/min

Peak Engine Torque

1021[ 1385 ]

Rated Speed

1800rpm

Compression Ratio

14.5:1

Rating Type

Continuous

Fuel Consumption at Rated Speed

Approx. 57 L/hr at rated speed

Bore

140mm(5.5 in)

Cooling system

Jacket Water Aftercooled (JWAC)

Stroke

152mm(6.0 in)

Firing Order

1-5-3-6-2-4

Aspriration

Turbocharged/Aftercooled

Dry Weight

3150 lbs / 1430 kg

Displacement

14L

Emission

General Information of Cummins NTA855-M400 Marine Engine

Cummins NTA855-M400 Marine Engine

Powerful. Reliable. Certified for Continuous Marine Use.


Product Description

The Cummins NTA855-M400 is a robust, turbocharged and aftercooled 6-cylinder marine diesel engine, engineered for continuous-duty marine propulsion applications. Cummins MTA 855 marine propulsion engine offers 400HP (298kW) at 1800 RPM, ensuring dependable performance under the most demanding conditions. Fully compliant with IMO MARPOL 73/78 Annex VI regulations, the NTA855-M400 is ideal for commercial vessels requiring consistent power output and fuel efficiency.


Specifications

Item Details
Engine Model NTA855-M400
Power Output 400 HP / 298 kW @ 1800 RPM
Displacement 14 L (855 in³)
Cylinders 6
Bore x Stroke 140 mm x 152 mm (5.5 in x 6.0 in)
Aspiration Turbocharged / Aftercooled
Compression Ratio 14.5:1
Fuel System Cummins PT System
Fuel Consumption Approx. 57 L/hr at rated speed
Cooling System Jacket Water Aftercooled (JWAC)
Certifications IMO MARPOL Annex VI, Regulation 13
Dry Weight (with HX) Approx. 3150 lbs / 1430 kg
Rated Type Continuous

Product Advantages

  • IMO-Certified: Fully compliant with IMO NOx emission standards for global marine applications.
  • Durable Continuous Rating: Designed for uninterrupted, around-the-clock marine operations.
  • Optimized Fuel Efficiency: Low fuel consumption at high performance, reducing operational costs.
  • Proven Technology: Backed by Cummins’ global engineering and service network.

Key Features

  • High-strength 6-cylinder inline design for reliable propulsion.
  • Turbocharged and aftercooled for improved power density.
  • Compatible with standard marine gearboxes and installations.
  • Efficient jacket water cooling system.
  • Engineered for easy service and parts availability worldwide.

Applications

  • Cargo Vessels
  • Tugboats
  • Fishing Boats
  • Ferries
  • Patrol Boats
  • Inland River Transport

Ideal for vessels requiring continuous engine operation with high reliability.


Product Availability

The Cummins NTA855-M400 marine engine is readily available for global delivery. We offer flexible configurations, gearbox compatibility, and international shipping to meet your marine project’s specifications.

For pricing, custom configurations, or lead time, contact our sales team today.

Download of Cummins NTA855-M400 Marine Engine Datasheet

Model

Power

Emission

Datasheet

Drawing

Service Manual

NTA855-M400 Marine Engine

298kW [400HP] @1800 r/min

Download

Model

NTA855-M400 Marine Engine

Power

298kW [400HP] @1800 r/min

Emission

Datasheet

Drawing

Download

Service Manual

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