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Original Cummins QSKTAA19-G3 | 574kW (770HP) CCEC G-Drive Engine
he Cummins QSKTAA19-G3 is a high-performance 19L inline 6-cylinder diesel generator engine developed by Chongqing Cummins (CCEC) for 50Hz power generation systems. With a rated output of 574kW at 1500RPM and standby power up to 634kW, this engine is widely used in 650kVA–800kVA generator sets for industrial, commercial, and emergency backup applications.
Tech Specs of Cummins QSKTAA19-G3
General Engine Data
Engine Model: Cummins QSKTAA19-G3
Type: 6 Cylinders in Line, 4 Stroke Diesel
Displacement: 19 L
Bore * Stroke: 159 * 159
Net Weight: 1977 Kg
Overall Dimension: 1324mm*835mm*1183mm
Key Performance Data
Rated Power/Standby Output: 574 kW/770HP, 634 kW/850HP
Rated Speed: 1500 rpm
Low Idle Speed: 675-775 rpm
Fuel Consumption: 143 L/Kw.h
More Technical Data
Fuel System: Cummins PT Pump, Direct Injection
Aspiration: Turbocharged/Charge Air Cooled
Cooling Method: Water Cooled
Electrical System (Starter Motor/Alternator): 24V
Governor Type: Electronic Control
Compression Ratio: 13.5:1
Lowest Starting Temp (Without auxiliary system): -12℃
Engine Exhaust Manifold: Optional for Wet Exhaust manifold Heat exchanger
Key Features of Cummins QSKTAA19-G3 Engine
Advanced MCRS Fuel System Technology
The core differentiator of the CCEC QSKTAA19-G3 engine is its Modular Common Rail fuel System (MCRS). Unlike the traditional PT fuel systems found in older models, the MCRS allows for multiple injection events within a single combustion cycle, which provides:
- High-pressure fuel injection for precise control
- Improved fuel efficiency and reduced emissions
- Better performance under variable load conditions
Compared to traditional PT fuel systems, the MCRS system ensures more stable operation and lower fuel consumption.
High Power Density and Reliability
With a compact 18.9L displacement and inline 6-cylinder design, the engine delivers:
- 574kW prime power
- 634kW standby power (850HP)
- Strong load acceptance capability
This makes it ideal for continuous-duty and standby power applications.
Robust Turbocharging and Cooling System
The engine features:
- Turbocharged and aftercooled air system
- Efficient water-cooling system
- Reliable performance in high-temperature environments
This design ensures long service life and consistent output in demanding conditions.
Application Scenarios
The Cummins QSKTAA19-G3 generator engine is widely used in:
- Data Center Backup: As a high-power backup generator for commercial buildings, the electronic governance ensures zero interruption during mains failure.
- Mining & Drilling: Ideal for small and medium-sized mining plants, providing rugged prime power generation for remote grids where reliability is critical.
- Marine Auxiliary: The QSKTAA19-G3 marine auxiliary generator engine variant offers stable power for shipboard systems, meeting rigorous marine standards.
- Construction Sites: Its mobile-friendly dimensions make it perfect for construction site mobile power supply, delivering 600kVA+ output on demand.
- Telecom and remote grid power stations
- Industrial manufacturing backup systems
Its performance makes it suitable for both standby and prime power applications.
Comparative Analysis: QSKTAA19-G3 vs. KTA19 & QSK38
QSKTAA19-G3 vs. KTA19-G3: The Evolution
A frequent inquiry we receive at HekoPower concerns the difference between KTA19-G3 and QSKTAA19-G3. While the KTA19 is a mechanical legend, the QSK19-G3 generator engine is the modern successor.
- Emissions: The QSK series meets higher environmental standards.
- Load Response: Thanks to the electronic control governor engine design, the QSKTAA19-G3 handles "step-loading" significantly better than its mechanical counterparts.
- Competitive wholesale pricingCold Start: With the ability to achieve a lowest starting temperature of -12℃ without aids, it is the superior choice for emergency backup power in colder climates.
QSK19 vs QSK38
While the QSK38 offers higher total power, the QSKTAA19-G3 provides superior power density for applications under 700kVA, resulting in a smaller footprint and lower initial investment. For users comparing QSKTAA19-G3 vs QSK19-G4/G5, the G3 remains the most cost-effective solution for standard 50Hz/60Hz generator applications.
Why Choose HekoPower as Your Cummins Supplier?
Procuring a wholesale Cummins QSKTAA19-G3 generator engine requires a partner who understands global logistics and technical support. HekoPower provides:
- Original CCEC Cummins engines
- Competitive wholesale pricing
- Flexible payment terms (T/T, L/C)
- Delivery within 15–30 working days
- Global shipping and export service
- 12-month warranty and technical support
We also supply genuine parts for QSK19 engines, including:
- Fuel injectors and MCRS components
- Turbochargers and air systems
- Filters and maintenance kits
- Overhaul kits and cylinder components
Explore our full range of Cummins QSK19 series engines for varying power needs. Cummins QSK-G Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes QSNT-G, QSK19-G4, QSK19-G5, QSKTAA19-G3, QSK38-G1, QSK38-G2, QSK38-G3, QSK38-G4, QSK38-G5, QSK50-G2, QSK50-G3, QSK50-G4, QSK50-G6, QSK50-G7.
