⚙️ Proven 14L Heavy-Duty Power Platform for Industrial Applications

The Cummins NT855 engine series is a legendary 14-liter inline 6-cylinder diesel platform, widely recognized for its durability, reliability, and long service life in demanding industrial environments.

With a power range from 280HP to 480HP, the NT855 engines are designed to deliver consistent performance in generator sets, mining equipment, and heavy-duty industrial machinery.

🔷 Product Introduction

The Cummins NT855 Industrial Diesel Engines Series is one of Cummins’ most proven heavy-duty engine platforms, with decades of service across global industrial sectors.

Featuring a robust inline 6-cylinder design and Cummins PT (Pressure Time) fuel system, the NT855 delivers efficient combustion, stable power output, and low maintenance requirements.

Its 14L displacement provides strong torque and load-handling capability, making it ideal for continuous-duty applications.

🔷 Technical parameters

Parameter	Specification
Engine Family	NT855
Engine Type	Inline 6-cylinder, 4-stroke diesel
Displacement	14 Liters
Power Range	280 – 480 HP
Aspiration	Naturally Aspirated / Turbocharged / Aftercooled
Fuel System	Cummins PT System
Bore × Stroke	140 mm × 152 mm
Cooling System	Water-cooled
Weight	~1400–1500 kg

🔷Core advantages

1. Proven Industrial Reliability

NT855 engines have been used globally in harsh environments for decades, delivering long service life and high uptime.

2. High Torque for Heavy Loads

Large displacement ensures strong torque output for mining, pumping, and generator applications.

3. PT Fuel System Advantage

Cummins PT system provides:

• Accurate fuel delivery
• Better combustion efficiency
• Lower maintenance complexity

4. Easy Maintenance Design

• Replaceable wet liners

🔷 Application scenarios

The NT855 engine series is widely used in:

• Diesel generator sets (200–400 kVA range)
• Mining equipment and drilling systems
• Construction machinery
• Industrial pump systems
• Oil & gas field equipment
• Marine auxiliary power

🔷 Compared with the M11 series

Series	Displacement	Power	Position
M11	10.8L	250–380HP	Medium duty
NT855	14L	280–480HP	Heavy duty
KTA19	19L	450–600HP	Ultra heavy

🔷 Why choose NT855?

✔ Proven long-life industrial platform
✔ Strong torque for heavy-duty applications
✔ Wide global parts availability
✔ Lower maintenance complexity
✔ Suitable for continuous operation

🔷 FAQ

Q1: What is the displacement of NT855 engine?

A: The Cummins NT855 has a 14-liter displacement.

Q2: What is the power range of NT855?

A: It ranges from 280HP to 480HP depending on configuration.

Q3: What applications is NT855 used for?

A: Generator sets, mining equipment, construction machinery, and industrial power systems.

Q4: What fuel system does NT855 use?

A: It uses the Cummins PT (Pressure Time) fuel system.

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