Product Description

The Cummins NTA855-G3 Generator Drive Engine is a high-performance 14L, 6-cylinder, turbocharged and aftercooled diesel engine, engineered for heavy-duty generator set applications. With a standby rating of 399 kW and prime rating of 358 kW at 1800 rpm (60Hz), it ensures dependable performance in demanding power generation environments.

Equipped with Cummins’ PT fuel system, robust cooling design, and superior fuel efficiency, the NTA855-G3 is a proven choice for continuous, standby, or prime power applications in industrial and commercial operations worldwide.

Specifications

• Engine Model: Cummins NTA855-G3
• Application: Generator Drive Engine
• Displacement: 14 L (855 in³)
• Configuration: 6-cylinder, in-line, 4-cycle
• Bore × Stroke: 140 × 152 mm
• Compression Ratio: 14.0:1
• Aspiration: Turbocharged & Aftercooled
• Fuel System: Cummins PT Direct Injection

• Power Output (1800 rpm, 60Hz):

  • Prime: 358 kW (480HP)

  • Standby: 399 kW (535HP)

  • Continuous: 280 kW (375HP)

• Torque (N·m): 1703 (Prime) / 1896 (Standby)
• Idle Speed: 575–675 rpm
• Maximum Governed Speed: 1800 rpm
• Dry Weight: 1315–1420 kg (depending on cooling type)
• Lubrication Capacity: 28–39 L

• Cooling Capacity (Engine Only): 20.8 L

Product Advantages

• Higher Power Density – Up to 399kW standby output, ideal for large-scale generator set projects.
• Genuine Cummins Engineering – Built under strict global Cummins quality standards for maximum reliability.
• Fuel Efficiency – Optimized PT fuel system provides precise injection and reduced consumption.
• Heavy-Duty Design – Turbocharged and aftercooled for durability in continuous high-load conditions.
• Flexible Ratings – Available in standby, prime, and continuous power configurations.

• Global Service Support – Fully backed by Cummins’ worldwide parts and maintenance network.

Key Features

• Designed exclusively for generator drive applications at 60Hz (1800 rpm).
• Turbocharged & aftercooled for efficiency and temperature control.
• Meets ISO 3046, BS-5514, and DIN-6271 performance standards.
• Stable operation with ±0.25% steady-state speed regulation.
• Suitable for standby, prime, and continuous duty cycles.

• Robust oil and cooling system for extended service life.

Applications

The Cummins NTA855-G3 Diesel Engine for Generator Sets is ideal for:

• Prime Power Generation – continuous electricity for mining, factories, and industrial facilities.
• Standby Power Systems – backup energy for hospitals, airports, telecom, and data centers.
• Utility & Infrastructure Projects – power for ports, government facilities, and critical infrastructure.
• Rental Power Units – reliable mobile gensets for construction and events.

• Large-Scale Industrial Applications – high-output engines for energy-intensive operations.

Product Availability

The Cummins NTA855-G3 Generator Drive Engine is available for immediate order in 60Hz (1800 rpm) configuration. We provide genuine Cummins engines with warranty, worldwide shipping, and technical support, backed by Cummins’ global dealer and service network.