Product Description

The Cummins NTAA855-G7A Generator Drive Engine is a powerful 14L, 6-cylinder, turbocharged, and air-to-air aftercooled diesel engine designed specifically for generator sets. Operating at 1500 rpm (50Hz), it delivers up to 407 kW (545 hp) standby power, with excellent fuel efficiency and long-term reliability.

Equipped with Cummins’ advanced PT fuel system, heavy-duty lubrication, and robust cooling capacity, the NTAA855-G7A provides stable performance under prime and standby duty cycles. It is a proven power solution for industrial, commercial, and infrastructure applications worldwide.

Specifications

• Engine Model: Cummins NTAA855-G7A
• 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 & Air-Air Cooled
• Fuel System: Cummins PT Direct Injection
• Power Output (1500 rpm, 50Hz): Standby: 407 kW (545 hp)
• Torque: 2591 N·m
• Fuel Consumption (at 100% load): 89.2 L/h (200.5 g/kWh)
• Idle Speed: 575–650 rpm
• Maximum Governed Speed: 1800 rpm
• Dry Weight: 1270 kg
• Wet Weight: 1320 kg
• Lubrication Capacity: 28–39 L
• Cooling Capacity (Engine Only): 20.8 L

Product Advantages

• High Output Rating – Up to 407 kW standby power, engineered for heavy-duty generator set applications.
• Efficient Cooling – Air-to-air aftercooling ensures better thermal management and enhanced reliability.
• Fuel Economy – Cummins PT direct injection system optimizes fuel delivery and reduces consumption.
• Proven Durability – Robust 14L platform with heavy-duty components ensures long service intervals.
• Compact Inline-6 Design – Simplifies genset installation with minimal space requirements.

• Global Cummins Support – Backed by Cummins’ worldwide dealer and service network for parts and maintenance.

Key Features

• Optimized for 50Hz power generation at 1500 rpm.
• Turbocharged and air-to-air aftercooled for improved efficiency.
• Meets ISO 3046 performance standards under reference test conditions.
• Excellent load acceptance and high torque stability.
• Heavy-duty lubrication and cooling system for continuous operation.

• Suitable for both prime and standby generator set applications.

Applications

The Cummins NTAA855-G7A Diesel Engine for Generator Sets is widely used in:

• Prime Power Generation – continuous electricity for mining, industrial facilities, and factories.
• Standby Power Systems – backup power for hospitals, data centers, and telecom operations.
• Infrastructure Projects – reliable power for airports, ports, and government facilities.
• Rental Power Units – rugged solution for temporary or mobile gensets.

• Heavy Industry – manufacturing plants and large-scale construction operations.

Product Availability

The Cummins NTAA855-G7A Generator Drive Engine is available for global supply with genuine Cummins warranty, spare parts, and technical support. Customers benefit from fast delivery and Cummins’ worldwide dealer service network.