Details
Genuine Cummins KTA19-G3 403kW G-Drive Generator Engine for 50Hz & 60Hz Diesel Generator Sets
If you are sourcing an industrial backup power unit, the CCEC Cummins KTA19-G3 stands out as a premier heavy-duty choice. Manufactured by the Chongqing Cummins joint venture in China, this inline 6-cylinder, 19-liter turbocharged engine is specifically engineered for high-demand generator applications.
As a dedicated global engine supplier, HekoPower provides complete, factory-tested Cummins KTA19-G3 diesel engine assemblies directly from the production line to your facility. Whether you are replacing an aging prime mover or building a brand-new 50Hz or 60Hz diesel generator set, this power plant delivers a standby output of 403 kW (540 HP) at 1500 RPM.
Tech Specs of Cummins KTA19-G3 G-Drive Engine
General Engine Data
Engine Model: Cummins KTA19-G3-403kW
Type: 6 Cylinders in Line, 4 Stroke Diesel
Displacement: 19 L
Bore * Stroke: 159 * 159
Net Weight: 1927 Kg
Overall Dimension: 1324mm*835mm*1183mm
Key Performance Data
Rated Power/Standby Power: 403 kW/540HP, 448 kW/600HP
Rated Speed: 1500 rpm
Low Idle Speed: 575-775 rpm
Fuel Consumption @ Rated Power: 97 L/Kw.h
Continuous Output/Speed: 354 kW/475HP @ 1500 rpm
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: Navigating the K19 Product Line
Understanding the engineering differences within the Chongqing Cummins joint venture KTA19-G3 product matrix prevents costly missteps during fleet integration.
KTA19-G3 vs. KTA19-G2 and KTA19-G4
The K19 platform shares an identical 18.9-liter displacement across the lineup, featuring a square bore stroke design of 159 mm by 159 mm. However, internal fuel scheduling and air management map to entirely different operational tiers:
- The KTA19-G2 baseline: Delivers a prime output of 336 kW. It fits smaller power profiles but lacks the thermal reserve for rapid, high-demand load spikes.
- The KTA19-G3 configuration: Steps up performance to a rated prime power of 403 kW Cummins generator engine output (540 HP) and a robust standby capacity of 448 kW (600 HP). This middle tier provides an ideal safety margin for 500 kVA to 510 kVA generator systems without requiring the higher premium of the G4.
- The KTA19-G4 variation: Pushes prime power to 448 kW. It uses a higher turbocharger trim profile that increases internal cylinder pressures and structural stress.
Mechanical Simplicity vs. Modern Electronic Emissions Engines
Many international buyers actively seek the Cummins KTA19-G3 generator engine over newer QSK19 common-rail platforms. This preference stems from regional infrastructure requirements.
The QSK19 series relies on complex electronic control modules (ECMs) and highly sensitive high-pressure common-rail systems. These setups require ultra-low sulfur diesel and proprietary software diagnostics.
In contrast, the KTA19-G3 turbocharged diesel engine retains the classic, completely mechanical Cummins PT pump direct injection system. The mechanical governor manages fuel delivery reliably, even when operating on variable-quality fuel in remote mining power sectors or isolated construction sites.
Maintenance, Retrofitting, and Component Tips
Extending the life cycle of a heavy-duty engine relies on precise parts matching and clear maintenance schedules.
Managing the Cummins PT Fuel System and CPL Numbers
The performance characteristics of any genuine Cummins KTA19-G3 depend on its Control Parts List (CPL) designation, such as CPL 1445. The CPL tracks internal components like the camshaft profiles, piston crowns, and injector cup sizes.
When replacing an older engine assembly, matching the CPL number ensures the replacement drops perfectly into your existing radiator and control linkages without requiring fabrication work.
Electronic Governor Upgrade for Cummins KTA19-G3 Generator
While standard configurations ship with a dependable mechanical governor, standard setups exhibit a 3% to 5% speed droop during sudden, high-amp load changes. For modern commercial setups, we advise retrofitting the fuel system with an electronic governor upgrade.
Integrating an external electronic actuator and speed controller directly with the PT pump cuts response latency to less than one second. This upgrade allows the engine to achieve tight isochronous speed control (0% droop), protecting sensitive electronics from sudden frequency fluctuations.
Air and Turbocharger Optimization
The baseline CCEC KTA19-G3 PT pump and Holset turbocharger specs are tuned for optimal exhaust gas scavenging at 1500 RPM. Field service crews must regularly check the turbocharger oil feed lines for carbon buildup.
Because this engine generates significant exhaust energy, any restriction in oil cooling can cause the turbocharger bearings to lock prematurely. This failure drops power output well below the rated 403 kW baseline.
Real Application Scenarios for the 510kVA Profile
The Chongqing Cummins 510kVA engine platform fits mid-to-high capacity prime and standby installations. This power level aligns with specific structural demands across major global industries.
Emergency Standby Power
- Data Centers: In digital infrastructure, the engine pairs with a high-reactivity Stamford alternator to deliver immediate standby power during grid failures. It seamlessly handles non-linear UPS loads.
- Hospitals: Healthcare installations require zero power interruptions. The engine's rapid compression-ignition cycle allows standby generators to reach rated voltage and accept full load blocks within 10 seconds of a mains power loss.
- Telecom Backup Power: Placed in remote switching hubs, the engine provides reliable runtime during extended grid blackouts, requiring fewer maintenance checkups than more complex modern platforms.
Continuous Prime Operations
- Mining Power Installations: Operating in dusty, high-altitude regions, the engine's cast-iron block provides the rigidity needed to run continuously under vibrating, heavy-duty industrial loads.
- Construction Sites: The mechanical design simplifies field repairs. Local heavy equipment mechanics can easily service the engine using standard tools, avoiding the need for specialized software.
Industrial Procurement and Global Logistics
Navigating international supply chains requires reliable, verified physical and legal documentation. HekoPower streamlines this process.
Verification of Genuine CCEC Origin
The global market contains numerous unauthorized rebuilds. Every Genuine Cummins KTA19-G3 supplied by HekoPower ships with its original CCEC Certificate of Origin matching the engraved engine data plate. Each engine carries a unique Control Parts List (CPL) number (typically CPL 4153 or similar depending on final application specs), allowing global Cummins service networks to instantly verify parts compatibility.
Packing Dimensions and Shipping Weight
For freight forwarders and logistics planners, calculating precise transport costs requires accurate deadweight data.
HekoPower packs each KTA19-G3 complete engine in a heavy-duty, fumigated IPPC wooden sea-crate. Total packed shipping weight averages 2,050 kg, preventing transit damage during long-distance maritime freight.
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.
Procurement FAQs for Global Buyers
What are the verified shipping weight and packing dimensions for a complete engine assembly?
A crate-ready, fan-to-flywheel Cummins KTA19-G3 engine assembly has an approximate net dry weight of 1,814 kg, with a wet weight of roughly 1,886 kg. Standard ocean freight packing dimensions run 1,573 mm long, 796 mm wide, and 1,343 mm high. HekoPower secures every engine assembly in heavy-duty export wood framing to prevent movement and corrosion during sea transit.
How do we verify the authenticity of a Chongqing Cummins engine?
Every genuine CCEC engine assembly includes an engraved metal data plate stamped with a unique 8-digit engine serial number (ESN). As an export partner, HekoPower delivers an original CCEC KTA19-G3 engine certificate of origin alongside factory verification paperwork. This documentation allows you to verify build details directly through the global Cummins database before the unit leaves China.
What is the expected Cummins KTA19-G3 fuel consumption rate per kWh?
Fuel consumption scales predictably with electrical demand. At 100% prime output (403 kW load), the engine consumes approximately 97 liters of diesel per hour. At standby limits (448 kW), consumption rises to 107 liters per hour. These figures assume standard ambient pressures and clean fuel filtration.
Can this engine be configured for dual-frequency operations?
The KTA19-G3 engine is built primarily as a 50Hz generator engine optimized for 1500 RPM configurations. If your local project demands 60Hz operation at 1800 RPM, consult our sales engineering department before ordering. Speed changes require resetting the PT pump calibration and adjusting the governor balance to prevent overspeed faults.
What is the standard Cummins KTA19-G3 wholesale price and delivery lead time?
As a dedicated trade supplier, HekoPower offers competitive volume packaging. Standard factory lead time for a brand-new engine assembly typically spans 15 to 30 working days, depending on custom alternator pairings or specific validation requirements. Contact our sales staff directly with your required destination port for a precise, duty-inclusive commercial quotation.
Can this engine operate efficiently in 60Hz power grids?
Yes. The CCEC Cummins KTA19-G3 engine assembly is dual-frequency capable. While it is optimized at 1500 RPM for 50Hz applications, it can be re-governed to 1800 RPM to drive $60\text{Hz}$ generators, adjusting its standby power curve accordingly.
How does HekoPower handle spare parts support down the road?
Because we supply genuine CCEC builds, all component parts—from complete overhaul gasket kits to replacement Holset turbos—are standard worldwide. You can source them locally through any authorized Cummins parts network or order them directly from HekoPower for fast international air express delivery.
