Details
Cummins KTA19-G3A 507kW Generator Drive Engine
The CCEC Cummins KTA19-G3A is a heavy-duty, six-cylinder, 18.9-liter diesel engine engineered specifically for high-demand prime and standby power generation. Operating at an optimal 1800 RPM, this configuration (often designated as the KTA19-G3A-B) delivers a reliable 507 kW (680 HP) of prime power and 563 kW (755 HP) for standby applications. Built at the Chongqing Cummins Engine Company (CCEC) joint venture plant, this 19-liter generator engine utilizes the proven FR-4212 performance curve and is officially classified under CPL 4153. HekoPower supplies the genuine KTA19-G3A complete assembly to global OEMs and industrial packagers who require uncompromising durability for 60Hz power solutions.
B2B buyers often face confusion when sourcing the KTA19 series due to overlapping model numbers. The KTA19-G3A 507kW configuration is explicitly tuned for 1800 RPM operations, making it the industry standard for 60Hz generator sets used in North America, South America, Saudi Arabia, and the Philippines. Featuring a 159mm bore and 159mm stroke alongside a 13.9:1 compression ratio, this turbocharged and aftercooled engine provides exceptional load acceptance. The mechanical PT fuel system and direct injection diesel architecture guarantee that fuel consumption remains highly efficient, burning approximately 102 L/Kw.h at a 100% prime power load.
Tech Specs of Cummins KTA19-G3A 507kW
General Engine Data
Engine Model: Cummins KTA19-G3A-507KW
Type: 6 Cylinders in Line, 4 Stroke Diesel
Displacement: 19 L
Bore * Stroke: 159 * 159
Net Weight: 1760 Kg
Overall Dimension: 1324mm*835mm*1183mm
Key Performance Data
Standby Power/Standby Output: 507 kW/679HP, 563 kW/754HP
Rated Speed: 1800 rpm
Low Idle Speed: 675-775 rpm
Fuel Consumption @ Rated Power: 102 L/Kw.h
More Technical Data
Engine Exhaust Manifold: Optional for Wet Exhaust manifold Heat exchanger
Aspiration: Turbocharged/Aftercooled
Compression Radio: 13.9:1
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
Technical Comparisons: KTA19-G3A vs. Alternative Configurations
When specifying a heavy-duty engine for generator assembly, distinguishing between the KTA19-G3A and similar Cummins models is critical to avoid costly operational mismatches.
KTA19-G3A-A vs KTA19-G3A-B
A common misconception is that the "G3A" designation applies universally to all frequency requirements. In reality, the KTA19-G3A-A is calibrated for 1500 RPM, producing 448 kW of prime power for 50Hz markets. By contrast, the KTA19-G3A-B is calibrated for 1800 RPM, outputting 507 kW for 60Hz markets. Installing a G3A-A in a 60Hz application will result in severe underperformance and potential alternator damage. HekoPower strictly verifies your target frequency to ensure the correct D193091DX02 configuration is supplied.
KTA19-G3A vs KTA19-G4
Buyers often debate whether to purchase the KTA19-G3A or the KTA19-G4 generator engine, as both share the same 18.9L displacement block and 507kW rating at 1800 RPM. The difference lies entirely in the specific emission and fuel calibration profiles dictated by their respective CPL numbers. While the power output is identical in 60Hz environments, the KTA19-G3A is often preferred for legacy fleet replacements where existing controls and exhaust plumbing are already engineered for the FR-4212 curve.
KTA19-G3A vs KTAA19-G5
Another frequent comparison is the KTA19-G3A against the KTAA19-G5. The distinction here is the cooling technology. The KTA19-G3A utilizes a water-to-air aftercooler, leveraging the engine's jacket water to cool the intake air. The KTAA19-G5 utilizes an air-to-air intercooler, requiring a distinct radiator setup. For environments with extreme ambient heat, the air-to-air cooling of the G5 might offer slight intake density advantages, but the KTA19-G3A remains highly favored for its simpler radiator plumbing and lower overall installation footprint.
Real Application Scenarios
The 507kW Cummins engine is not designed for light-duty commercial use; it is a specialized industrial prime mover. HekoPower supplies the KTA19-G3A primarily for critical infrastructure that cannot afford downtime.
In the mining sector, the KTA19-G3A mining generator engine powers remote extraction sites where grid electricity is non-existent. The robust mechanical PT fuel system is highly tolerant of the varying diesel qualities often found in remote logistics chains. For data center backup generators, the engine's rapid start capability and high block load acceptance meet the stringent transient response requirements necessary to keep servers online during unexpected grid failures.
Similarly, as a telecom backup generator or remote power generator engine, the 19-liter displacement provides massive low-end torque, easily absorbing the sudden electrical surges caused by heavy industrial motor starts or HVAC cycling at telecom switching stations.
Maintenance and Replacement Tips
Maintaining the KTA19-G3A requires adherence to specific protocols, particularly regarding its mechanical fuel delivery. The Cummins KTA19-G3A PT fuel pump is the heart of the engine's efficiency. A major misconception is that standard inline pump mechanics can service the PT system. The Pressure-Time (PT) system requires specialized calibration tools to adjust the fuel injector timing properly. If you experience unexpected black smoke under load, the issue is rarely the turbocharger; it is almost always improperly calibrated injector timing or a worn PT pump gear.
When ordering replacement parts, you must reference CPL 4153. Ordering parts based merely on the "KTA19" nameplate often results in receiving incorrect pistons or injectors, as the 13.9 compression ratio is specific to this CPL. Furthermore, always verify the engine shipping weight (approximately 1760 kg dry) and dimensions when arranging freight for a KTA19-G3A replacement engine, as its sheer mass requires specialized rigging and reinforced skid packaging during export.
Cummins KTA19 Generator Engine Series
As a dedicated engine supplier, HekoPower provides complete power solutions across the entire 19-liter spectrum. Our inventory and supply chain are structured to support both single-unit replacements and bulk OEM packaging.
Cummins K19-G Series, original products from Chongqing Cummins Engine Plant(CCEC). This series mainly includes KTA19-G2-336KW, KTA19-G3-403kW, KTA19-G3A-448kW, KTA19-G4-448KW, KTAA19-G5-502KW, KTAA19-G6-570KW, KTAA19-G6A-610KW, KTAA19-G7-610KW, KTA19-G2-392KW, KTA19-G3-463KW, KTA19-G3A-507KW, KTA19-G4-507KW, KTAA19-G5-555KW, KTAA19-G6-620KW, KTAA19-G6A-664KW, KTAA19-G7-664KW, KTAA19-G8-575KW.
Cummins KTA19-G3A Product FAQ
What is the fuel consumption of the Cummins KTA19-G3A at 100% load?
At a 100% prime power load generating 507kW at 1800 RPM, the KTA19-G3A fuel consumption is rated at 102 liters per hour (102 L/Kw.h). Operating at 75% load significantly improves relative efficiency, making it highly economical for continuous industrial use.
How do I obtain the Cummins KTA19-G3A technical specification datasheet PDF?
HekoPower provides the official performance curve (FR-4212) and complete engineering datasheets to our clients upon request. Please contact our sales team with your project details to receive the official CCEC documentation for alternator pairing.
Is there a difference between the G3A-A and G3A-B models?
Yes. The KTA19-G3A-A is locked at 1500 RPM for 50Hz power generation (448kW prime). The KTA19-G3A-B is built for 1800 RPM for 60Hz power generation (507kW prime). They are not interchangeable without severe performance penalties.
What is the standard lead time and wholesale quotation process?
For genuine CCEC KTA19-G3A assembly and parts, HekoPower typically requires a lead time of 15 to 30 business days. We provide comprehensive wholesale supplier quotations that include exact engine shipping weights, wooden casing dimensions, and FCA or CIF pricing based on your export requirements.
