Cummins NTA855-M Marine Main Engine
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Cummins NTA855-M Marine Main Engine
Category:
Power:
240–450HP
Rating type:
Continuous, Heavy Duty
Type:
Inline-6 Cylinder, 4-Stroke Diesel
Application:
Marine Propulsion
Packing Size:
1975x934x1598mm
Weight:
1430kg(3150lb)
HS Code:
840810
Technical Specification of Cummins NTA855-M Marine Main Engine
Engine Model
NTA855 series
Fuel System
Cummins PT fuel system
Rated Power
179kW (240HP)~336 kW (450HP)
Peak Engine Torque
Rated Speed
1800rpm~2100rpm
Compression Ratio
14.5:1
Rating Type
Continuous, Heavy Duty
Fuel Consumption at Rated Speed
Bore
140mm [5.5 in]
Cooling system
Sea water pump, Heat exchanger
Stroke
152mm [6.00in]
Firing Order
1-5-3-6-2-4
Aspriration
Turbocharged/Aftercooled
Dry Weight
1430KG
Displacement
14L (855 in³)
Emission
IMO Tier 1 or Tier 2
General Information of Cummins NTA855-M Marine Main Engine
🛠️ Cummins NT855 / NTA855 / N855-M Marine Diesel Engines
Versatile and Proven Power for Marine and Industrial Applications
🌍 Product Overview
- The Cummins 855 Series diesel engines — including NT855-M, NTA855-M, and N855-M models — are trusted worldwide for their robust performance, fuel efficiency, long-term durability and ease of maintenance.
- Cummins 855 series diesel engines, featuring a turbocharged and aftercooled inline-6-cylinder configuration with a 14-liter displacement. It is designed to deliver consistent performance in harsh environments such as offshore vessels, tugboats, and commercial fishing boats.
- This NTA855 marine diesel engine operates at 1800 RPM~2100 RPM and is available in continuous & heavy duty configurations ranging from 179 kW to 336 kW (240 to 450 BHP), making it suitable for both propulsion and auxiliary marine applications.
📊 Technical Specifications – Cummins 855 Series Diesel Engines
| Engine Model | Output Power (kW / MHP / BHP) | Engine Speed (RPM) | Rating Definition | Fuel Consumption @ Rated Speed L/hr (gal/hr) | Fuel Consumption ISO L/hr (gal/hr) | IMO Tier |
|---|---|---|---|---|---|---|
| NT855-M | 179 kW / 243 MHP / 240 BHP | 1800 | Continuous | 46.4 (12.3) | 32.8 (8.7) | 1 |
| NT855-M | 201 kW / 274 MHP / 270 BHP | 1800 | Continuous | 51.1 (13.5) | 35.1 (9.3) | 1 |
| NTA855-M | 224 kW / 304 MHP / 300 BHP | 1800 | Continuous | 56.0 (14.8) | 39.0 (10.3) | 1 |
| NTA855-M | 261 kW / 355 MHP / 350 BHP | 1800 | Continuous | 66.2 (17.5) | 46.6 (12.3) | 1 |
| NTA855-M | 298 kW / 406 MHP / 400 BHP | 1800 | Continuous | 74.6 (19.7) | 52.0 (13.7) | 1 |
| NTA855-M | 336 kW / 456 MHP / 450 BHP | 1800 | Continuous | 83.6 (22.1) | N/A | 1 |
| N855-M | 261 kW / 355 MHP / 350 BHP | 1800 | Continuous | 68.9 (18.2) | 47.7 (12.6) | 2 |
| N855-M | 298 kW / 406 MHP / 400 BHP | 1800 | Continuous | 77.3 (20.4) | 53.1 (14.0) | 2 |
| N855-M | 298 kW / 406 MHP / 400 BHP | 2100 | Heavy Duty | 84.0 (22.2) | 57.5 (15.2) | 2 |
⚙️ Key Features
- Displacement: 14 liters, in-line 6-cylinder
- Rating Options: Continuous and Heavy-Duty
- Mechanical Fuel System: Reliable and easy to maintain
- Turbocharged/Aftercooled (NTA models): Higher power density and thermal efficiency
- IMO Tier I or II Compliant (depending on model)
- Compact Footprint: Easy integration into a wide variety of platforms
-
Global Parts and Service Availability
🚢 Typical Applications
- Marine propulsion (tugs, fishing vessels, patrol boats)
- Marine auxiliary power units
- Industrial pumps and compressors
- Mobile and stationary generator sets
-
Construction and drilling equipment
Download of Cummins NTA855-M Marine Main Engine Datasheet
Model
Power
Emission
Datasheet
Drawing
Service Manual
Cummins NTA855 Series
240–450HP
IMO Tier 1 or Tier 2
Download
Download
Download
Model
Cummins NTA855 Series
Power
240–450HP
Emission
IMO Tier 1 or Tier 2
Datasheet
Download
Drawing
Download
Service Manual
Download
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