Cummins NTA855-M450

The Cummins NTA855-M450(1800 RPM) Marine Engine is a 6-cylinder inline, 14-liter four-stroke engine with a 140 mm (5.5 in) bore and a 152 mm (6.0 in) stroke. Equipped with a PT Fuel System, turbocharger, and Water-Air intercooler, this marine diesel engine complies with IMO-NOx requirements set by the International Maritime Organization (IMO). It provides continuous power of 450 HP (336 kW) at 1800 RPM.

Advantages include:

1. Stable Performance: The engine offers stable performance with sufficient combustion, ensuring reliability in marine operations.
2. Low Failure Rate: With a focus on durability and reliability, the engine boasts a low failure rate, reducing maintenance requirements and downtime.
3. Fast Starting and Good Acceleration: The engine features fast starting capabilities and good acceleration, crucial for marine applications where responsiveness is key.
4. Efficient Cooling: Strong cooling capabilities ensure optimal engine temperature regulation, enhancing performance and longevity.
5. High Injection Pressure: The engine operates with high injection pressure, promoting full fuel combustion and energy efficiency.
6. Emission Compliance: Meeting IMO Tier 2 emission regulations, the engine minimizes its environmental footprint while ensuring regulatory compliance.
7. Advanced Technologies: The adoption of CMI high-efficiency supercharger and intercooler technology, along with low-temperature intercooler technology, reduces fuel consumption and emissions while enhancing reliability.
8. Safety Features: Features such as overspeed protection and low-pressure fuel supply contribute to safe and efficient engine operation.
9. Modular Design: The engine’s modular design, block integration, and compact structure facilitate maintenance and enhance reusability.
10. Integrated Cylinder Design: The integrated design of the cylinder block and head ensures excellent lubrication and durability, further contributing to the engine’s reliability.

Hawks Parts offers comprehensive life cycle services for customers, including design, power system supply, installation, commissioning, after-sales service training, spare parts supply, troubleshooting, and overhaul technical support. Additionally, we provide upgrading services for water-cooled exhaust systems, catering to the specific needs of passenger boat projects and ensuring optimal engine performance and reliability.

NTA855-M450 – General Information

Model: NTA855-M450

Type: 6 Cylinders in Line, 4 strokes

Displacement: 14 L

Bore * Stroke: 140 * 152

Net Weight (with flywheel & alternator): 1430 Kg

Overall Dimension: 1809mm*881mm*1598mm

Manufacture Plant: Chongqing Cummins Plant

Engine Configuration No.: D0903348MX02

NTA855-M450 – Technical Specification

Certification: CCS/IMO Certificates

Aspiration: Turbocharged/Aftercooled

Fuel System: Cummins Pressure Time (PT Pump)

Starting System: Electrical Start (24V/100AMP)

Governor Type: Mechanical Control

Compression Radio: 14.5:1 (1800 rpm), 14.0:1 (2100 rpm)

Lowest Starting Temp Without auxiliary system: -12℃

Cooling Method: Sea water pump, Heat exchanger, Water cooled

NTA855-M450 – Performance Data

Rated Power/Speed (Heavy Duty): 336 kW/450HP @ 1800 rpm

Rated Power/Speed (Medium Continuous): 336 kW/450Hp @ 2100 rpm

Low Idle Speed: 575-675 rpm

High Idle Speed (1800 rpm): 1962-2106 rpm

High Idle Speed (2100): 2290-2415 rpm

Fuel Consumption (Running Speed): ≤ 83 L/hr

Cummins NTA855 Engine & Spare Parts