350HP Most Powerful 6 Cylinder Diesel Engine , High Performance 6 Cylinder Engines

Cummins NTA855-M Features:

1. Cummins NTA855-M With turbocharger & Aftercooler.
2. Cummins NTA855-M High medium continuous duty.
3. Cummins NTA855-M installs on PT Fuel pump.
4. Cummins NTA855-M fits to Keel cooling or heater excharger.
5. Cummins NTA855-M can be up to 450 HP (Max. Power ).
6. Cummins NTA855-M equips with Holset turbocharger.

Cummins NTA855-M350 Datasheet:

Engine Model NTA855-M (cummins NTA8855 M350 marine engine)
Displacement: 14.0 litre [855 in.3] Aspiration: Turbocharged/Aftercooled
Bore: 139 mm [5.50 in.]
Stroke: 152 mm [6.00 In.]
Fuel System: PT Advertised Power 261 [350] @ 1800
Cylinders: 6
Rating Type Continuous
Rated Engine Power kW [HP] 261 [350]
Rated Engine Speed RPM 1800
High Idle Speed Range RPM 1962 - 2106
Idle Speed Range RPM 575 - 675
Engine Torque N•m [ft lb] 1384 [1021]
Brake Mean Effective Pressure kPa [PSI] 1241 [180]
Compression Ratio 14.5:1
Piston Speed m sec [ft min.] 9.1 [1800]
Maximum Torque Capacity from Front of Crank**
Firing Order 1-5-3-6-2-4
Fuel System
Fuel Consumption litre hr [GPH] 66.4 [17.6]
Approximate Fuel Flow to Pump litre hr [GPH] 211 [56]
Fuel Rail Pressure Range kPa [PSI] 1116 [162]
Weight (Dry)
Engine Only kg [lb] 1303 [2870]
With Heat Exchanger Cooling System kg [lb] +127 [280]
Air System*
Intake Manifold Pressure mm Hg [in. Hg] 940 [37]
Intake Air Flow litre sec [CFM] 380 [800]
Heat Rejection to Ambient kW [BTU min.] 33 [1900]
Minimum Ambient Temperature for Cold Start (No Aids) °C [°F] 0 [32]
Exhaust System
Exhaust Gas Flow (after turbine) litre sec [CFM] 880 [1850]
Exhaust Gas Temperature (after turbine) °C [°F] 427 [800]
Cooling System
Heat Rejection to Engine Coolant kW [BTU min.] 220 [12,500]
Engine Water Flow litre min. [GPM] 427 [113]
Raw Water Flow litre min. [GPM] 234 [62]
Pressure Cap Rating w Heat Exchanger kPa [PSI] 103 [15]

Cummins Marine Engine List:

Cummin Marine Rating Guidelines:

Rating Definitions:

1. Ratings are based on ISO 8665 conditions of 100kPa and 25℃ and 30% relative humidity. Propeller shaft power represents the net power available after typical gear losses and is 97% of rated power. Power rated in accordance with IMCI proceduress.

2. Fuel consumption has a tolerance of +5% and is based on fuel of 35°API gravity at 16℃ having an LHV of 42,780 KJ/KG when used at 29℃ and weighing 838.9 g/liter with LTA when available.

Continuous Duty(CON):

1. Intended for continuour use in applications requiring uninterrupted service at full power. This rating is an ISO 3046 standard power rating.

Typical vessel applications include: ocean-going displacement hulls such as fishing trawlers, freighters, tugboats, bottom drag trawlers, and deep river towboats.

Heavy Duty:
Intended for continuous use in variable load applications where full power is limited to eight (8) hours out of every ten (10) hours of operation. Also, reduced power operations must be at or below 200 rpm of the maximum rated rpm. This is an ISO 3046 Fuel Stop Power Rating and is for applications that operate 5,000 hours per year or less.

Typical vessel applications include: displacement hull vessels such as mid-water trawlers, purse seiners, and towboats where frequent slowing is common and engine speed and load is stable. Also used in high speed vessels such as ferries and crewboats.

Typical auxiliary applications include: cargo pumps and thrusters in dynamic positioning modes.

Medium Continuous Duty(MCD):

Intended for continuous use in variable load applications where full power is limited to six hours out of every twelve hours of operation. Also, reduced power operations must be at or below 200rpm of the maximum rated rpm. This rating is an ISO 3046 fuel stop power rating and is for applications that operate less than 3,000 hours per year.

Typical vessel applications include: planing hull ferries, fishing boats designed for high speeds to and from fishing grounds, off-shore service boats, and also (non-cargo) displacement hull yachts and short trip coastal freighters where engine load and speed are cyclical.

Typical auxiliary applications include: powerpacks and some cargo pumps.

Intermittent Duty:

Intended for intermittent use in variable load applications where full power is limited to two hours out of every eight hours of operation. Also, reduced power operations must be at or below 200rpm of the maximum rated rpm. This rating is an ISO 3046 fuel stop power rating and is for applications that operate less than 1,500 hours per year.

Typical vessal applications include: planing hulls such as customs, military and police vessels, charter and some fishing vessel applications.

Typical auxiliary applications include: hydraulic powerpacks and thrusters for maneuvering and emergency and emergency fire pumps.

High Output(HO) Quantum Engines Only:

Intended for use in variable load applications where full power is limited to one hour out of every eight hours of operation. Also, reduced power must be at or below 200rpm of the maximum rated rpm. This rating is for pleasure/non-revenue generating applications that operate less than 500 hours per year.

2. Typical vessel applications include pleasure craft such as sportfishers, motoryachts, and cruisers.

Our Service:

1. 100% finished products inspection before shipment. Beside customer’s QC, we can help to do inspection and offer report.
2. We can palletize, make fumigation, supervise over loading,take loading photos for you.

3. Offer CO, Form A, Form E, Form F and certificate legalized by concerned embassy

4. One Year warranty for After-service.