Details
Genuine CCEC Cummins NTA855-G2A G-Drive Engine Supplier
Procuring an industrial-grade power source requires an exact match between equipment specifications and long-term operating demands. As an established global engine supplier, HekoPower provides factory-direct access to the genuine Chongqing Cummins NTA855-G2A diesel engine. This heavy-duty, 14L heavy-duty power plant is engineered specifically for reliable electrical generation systems. It delivers a nominal rated output of 310kW (415HP) at a fixed governor speed of 1500RPM, making it a foundation for high-output 50Hz diesel generator sets.
The structural engineering of the inline 6-cylinder Cummins N855 G-Drive platform combines structural durability with mechanical simplicity. Whether you are assembling a brand-new prime power generation station or securing an identical replacement engine Cummins NTA855-G2A for 350kVA generator arrays, this complete engine assembly arrives fully configured to integrate seamlessly with standard industrial alternators.
Tech Specs of Cummins NTA855-G2A
General Engine Data
Engine Model: Cummins NTA855-G2A
Type: 6 Cylinders in Line, 4 Stroke Diesel
Displacement: 14 L
Bore * Stroke: 140 * 152
Net Weight: 1410 Kg
Overall Dimension: 1980mm*900mm*1600mm
Key Performance Data
Rated Power/Standby Output: 310 kW/415HP, 343 kW/460HP
Torque @Rated/Standby Output: 1974/2184 N.m @ 1500 rpm
Rated Speed: 1500 rpm
Low Idle Speed: 575-650 rpm
Fuel Consumption @ Rated Power: 72 L/Kw.h
More Technical Data
Fuel System: Cummins PT Pump, Direct Injection
Aspiration: Turbocharged & Aftercooled
Electrical System (Starter Motor/Alternator): 24V/900A
Governor Type: Mechanical Control
Compression Ratio: 15:1
Lowest Starting Temp (Without auxiliary system): -12℃
Coolant Volume (Engine Only): 20.8 L
Cooling Method: Water Cooled
High-Pressure PT Fuel Pump and Mechanical Governor Controls
At the core of this model's long-term field reliability is the proprietary Cummins PT fuel system generator engine configuration. The Pressure-Time (PT) delivery system utilizes a high-pressure mechanical pump coupled with Step Timing Control (STC). This setup forces standard fuel injection parameters well above 120 MPa without needing complex electronic modules.
The NTA855-G2A mechanical governor maintains a tight 3% speed regulation loop, isolating the generator drive from instantaneous transient load drops. While modern electronic fuel systems face vulnerabilities from voltage surges or localized circuit degradation, this purely mechanical governor and PT fuel system variant ensures uninterrupted power delivery in remote areas.
Critical Application Profiles and Regional Deployments
Standby Power Infrastructure for Critical Facilities
The physical configuration of the CCEC Cummins NTA855-G2A engine naturally optimizes it for institutional backup applications where power drops are not an option. For data centers and emergency medical centers, the engine integrates directly with automated transfer switches. This setup ensures it achieves stable synchronous generation speeds within seconds of an grid failure.
- Cummins NTA855-G2A for hospital backup power: Sustains medical life-support infrastructure by delivering 343kW standby power across extended runtime cycles.
- Cummins NTA855-G2A for data center generator sets: Mitigates phase imbalances and controls voltage fluctuations during continuous load shifts.
- Cummins NTA855-G2A for telecom generator nodes: Provides remote switching centers with an independent, mechanically stable power baseline.
Remote Industrial and Prime Power Stations
Beyond simple emergency standby roles, the NTA855-G2A configuration is a durable option for continuous prime power installations where a local grid is non-existent.
Procurement Guide: Verified CCEC Metadata Verification
When sourcing a genuine Cummins NTA855-G2A engine, procurement managers must look past basic external labels to avoid the low-grade or remanufactured blocks common among generic suppliers. Every genuine engine assembly built by Chongqing Cummins Engine Co., Ltd. contains specific design tags that confirm its authenticity.
Checking the CPL and Data Sheet Codes
To confirm your engine is an authentic CCEC build, cross-reference these precise factory identifiers on the primary engine dataplate:
- Engine Configuration Number: Must read D093517DX02 for the true 1500RPM configuration.
- Control Parts List (CPL) Designation: Look for the official engineering designation CPL CQ130 or verified alternative 3525.
- Master Data Sheet Specification: The engineering performance data sheet must match document number DS-173E.
As a direct Cummins NTA855-G2A wholesale price supplier, HekoPower registers every engine assembly within the official CCEC global database prior to logistics dispatch. This indexing process preserves your international factory warranty coverage and guarantees that every component—from the water-cooled turbocharger to the internal main bearings—is a 100% genuine part.
Maintenance Architecture and Fleet Lifecycle Engineering
To maximize the service life of your equipment and protect against unexpected down-time, operators must adhere to the factory-defined service schedule for the NTA855-G2A platform.
Preventive Servicing Windows
- Every 250 Operating Hours: Flush and replace premium lubricating engine oil. Swap out the primary fuel filters and perform a physical inspection of the internal air intake restriction indicators.
- Every 1500 Operating Hours: Execute a complete mechanical overhead adjustment. This requires checking the injector timing heights and verifying valve clearances to keep fuel burn efficiency optimized.
- Every 6000 Operating Hours: Conduct a comprehensive overhaul of the water pump assembly and clean the core scaling inside the raw water heat exchangers.
Cummins PT Fuel Pump Maintenance Guide
The PT fuel pump relies entirely on clean, water-free diesel fuel for internal component lubrication. If debris bypasses the primary filters, the fuel metering orifice can wear prematurely, leading to engine hunting or unexpected RPM drops.
During standard maintenance cycles, technicians must clean the magnetic screen inside the fuel shutoff valve and inspect the return line check valves. Keeping back-pressure below 22 kPa on the injector return line prevents fuel from backing up, which keeps the combustion cycle running smoothly.
Technical Replacement and Generator Repowering Tips
Repowering an existing 350kVA generator enclosure with a brand-new engine assembly requires careful verification of structural and cooling system alignments.
Flange and Flywheel Housing Alignment
The NTA855-G2A is built with an industry-standard SAE 1 flywheel housing configuration. When swapping out an older power unit, engineers must check the air gap tolerance and confirm the angular alignment of the flexible coupling discs on the alternator shaft. Misalignment here can cause crankshaft counterweight vibrations, which can wear out the main rear main bearing prematurely.
Integrating the Radiator and Cooling System
The thermal management circuit requires a minimum expansion space of 5% of total system volume to manage coolant expansion safely. The standard modulating thermostat functions within an 82°C to 94°C window. When installing the engine inside an acoustic container or small generator room, ensure the radiator fan can exhaust hot air freely without recycling it back into the primary air intake.
Cummins N855-G Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes NT855-G, NT855-GA, NT855-G1, NT855-G1A, NT855-G1B, NTA855-G2, NTA855-G2A, NTA855-G3, NTA855-G4, NTA855-G7, NTA855-G7A.
Cummins NTA855-G2A Procurement FAQ
What are the main differences between the NTA855-G2A and the NTA855-G4?
The differences lie in their performance tuning and physical turbocharger configurations. The NTA855-G2A is optimized for a prime output of 310kW at 1500RPM. The NTA855-G4 uses a different air intake matching profile to deliver a higher output of 317kW under identical speed settings.
Can the NTA855-G2A engine be modified to run continuously at 1800RPM for 60Hz generator applications?
No. The engine configuration number D093517DX02 indicates that the fuel injection timing, mechanical governor links, and internal aftercooler balances are tuned specifically for 1500RPM (50Hz) operation. For 1800RPM requirements, you should order the factory-configured NTA855-G2B variant.
What specific warranty protections apply to a complete engine assembly purchased through HekoPower?
Every genuine Cummins engine assembly is backed by the standard CCEC factory warranty. This covers parts and certified technician labor for 12 months or up to 1500 operating hours, whichever comes first, manageable through the global Cummins service network.
