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Overview of Cummins KTA38-G2A Generator Engine
The Cummins KTA38-G2A 813kW generator drive engine is a heavy-duty industrial diesel engine designed for reliable power generation in critical applications such as data centers, hospitals, mining operations, and industrial plants. As part of the Cummins K38 series, this V12 engine delivers stable performance at 1500RPM for 50Hz generator systems.
Tech Specs of KTA38-G2A 813kW
General Engine Data
Engine Model: Cummins KTA38-G2A-813KW
Type: 12 Cylinders, 60° V Type, 4 Stroke Diesel
Displacement: 37.8 L
Bore * Stroke: 159 * 159
Net Weight: 3954 Kg
Overall Dimension: 2341mm*1360mm*1653mm
Key Performance Data
Rated Power, Standby Output: 813 kW/1090HP, 895 kW/1200HP
Rated Speed: 1500 rpm
Low Idle Speed: 725-775 rpm
Fuel Consumption @ Rated Power: 191 L/Kw.h
More Technical Data
Engine Exhaust Manifold: Optional for Wet Exhaust manifold Heat exchanger
Aspiration: Turbocharged/Intercooled
Compression Radio: 15.5:1
Fuel System: Cummins PT Pump, Direct Injection
Starting System: Electrical starting motor (24V)
Cooling Method: Water cooling
Lowest Starting Temp (Without auxiliary system): -12℃
Governor Type: Mechanical Control, ≤ 5%
Performance Advantages
Fuel Consumption and Efficiency
The Cummins KTA38-C1400 for mining truck applications is widely used in heavy-duty dump trucks, including compatibility with large mining brands. Its high torque and reliability make it suitable for continuous load operations.
Cooling System and Reliability
The engine features a 2-pump, 2-loop cooling system designed for efficient heat dissipation under high-load conditions. This ensures reliable operation in high-temperature environments such as mining sites and industrial plants. Additionally, the engine supports cold start capability down to -12°C without auxiliary equipment, making it suitable for cold-region installations.
Applications – Designed for Critical Power Systems
The KTA38-G2A 813kW generator engine is widely used in:
- Data center backup power systems
- Hospital emergency power supply
- Mining and construction site power
- Industrial manufacturing plants
- Offshore platform auxiliary power
- Commercial building emergency systems
Comparison Guide: Selecting the Right K38-G Rating
Navigating the difference between KTA38-G2, G2A, and G4 ratings can be confusing. HekoPower clarifies these distinctions to help you choose wisely.
G2 vs. G2A
While the base block is similar, the G2A features enhanced turbocharger matching and fuel calibration specifically for generator drive applications, offering better transient response than the standard G2.
G2A vs. G5
The KTA38-G5 is often rated for higher standby power (e.g., 880kW+), but the G2A is optimized for continuous prime power reliability with lower thermal stress, making it more cost-effective for long-duration industrial plant emergency backup.
Generator vs. Marine
Unlike marine propulsion engines (like the KTA38-M), the G2A is governed for constant speed (isochronous/droop) rather than variable speed torque, ensuring stable 50/60Hz output.
Generator System Integration and Selection Guide
The KTA38-G2A is designed for seamless integration into generator systems:
- Compatible with major alternator brands
- Supports various control systems (mechanical or electronic governor)
- Suitable for containerized or open skid installations
When selecting a generator engine, factors such as load demand, operating environment, and fuel efficiency should be considered. The KTA38-G2A provides an optimal balance between performance and cost.
HekoPower Value Proposition: More Than Just an Engine
Certification & Compliance
Every unit comes with full IMO Tier II compliant documentation and CCS certification, essential for global export and regulatory approval.
Comprehensive Service Package
Our supply includes a spare parts compatibility list, a starter kit (filters, belts, gaskets), and a detailed maintenance schedule. We provide turbocharger maintenance tips and guidance on alternator matching (Stamford, Marathon, Leroy Somer).
Global Logistics & Warranty
We offer export-ready seaworthy packing and global shipping via T/T or L/C payment terms. Expect wholesale pricing with a lead time of just 15–30 business days. All engines include a 12-month factory warranty and a full load test report verifying the 813kW output.
Cummins K38-G Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KT38-G-560KW, KTA38-G1-634KW, KTA38-G2-664KW, KTA38-G2A-813KW, KTA38-G2B-711KW, KTA38-G5-880KW, KTA38-G9A-1195KW, KT38-G-679KW, KTA38-G2-809KW, KTA38-G2A-915KW, KTA38-G4-1007KW.
