KTA19 Generator Engine — 336–664 kW CCEC Diesel G-Drive Power
KTA19-G Generator Drive Engine Overview
The CCEC KTA19-G series is a 6-cylinder inline, 18.9-litre generator drive diesel engine manufactured by Chongqing Cummins Engine Company (CCEC). Built on the legendary K19 platform — in continuous production since 1995 — it delivers prime power from 336 kW to 664 kW (450–890 HP) across 50 Hz (1500 RPM) and 60 Hz (1800 RPM) configurations.
Equipped with Cummins’ proven PT (Pressure-Time) mechanical fuel system with Step Timing Control (STC), the KTA19-G is renowned for its mechanical simplicity, tolerance of variable fuel quality, and low maintenance cost — making it a preferred choice for standby and prime power in emerging markets, remote sites, and applications where electronic diagnostic infrastructure is limited. Twenty distinct model ratings cover everything from 400 kVA standby to 800+ kVA prime genset packages.
50 Hz Models (1500 RPM)
Twelve model ratings are available for 50 Hz generator sets (1500 RPM), covering prime power from 336 kW to 610 kW. Each model links to its dedicated product page:
| Model | Prime Power | Standby Power | Aspiration | Comp. Ratio | Approx. kVA (0.8 PF) |
|---|---|---|---|---|---|
| KTA19-G2-A | 336 kW (450 HP) | 369 kW (495 HP) | T/A — Water-Air | 13.9:1 | 420 kVA prime |
| KTA19-G3-A | 403 kW (540 HP) | 448 kW (600 HP) | T/A — Water-Air | 13.9:1 | 504 kVA prime |
| KTA19-G3A-A | 448 kW (600 HP) | 504 kW (675 HP) | T/A — Water-Air | 13.9:1 | 560 kVA prime |
| KTA19-G4-A | 448 kW (600 HP) | 504 kW (675 HP) | T/A — Water-Air | 13.9:1 | 560 kVA prime |
| KTA19-G8E | 495 kW (663 HP) | 561 kW (752 HP) | T/A — Water-Air | 14.7:1 | 619 kVA prime |
| KTAA19-G5-A | 470 kW (630 HP) | 555 kW (744 HP) | TAA — Air-Air | 13.9:1 | 588 kVA prime |
| KTA19-G8A | 550 kW (737 HP) | 610 kW (817 HP) | T/A — Water-Air | 13.0:1 | 688 kVA prime |
| KTAA19-G6-A | 570 kW (764 HP) | — | TAA — Air-Air | 13.9:1 | 713 kVA prime |
| KTA19-G8 | — | 575 kW (771 HP) | T/A — Water-Air | 13.9:1 | 719 kVA standby |
| KTA19-G9A | 600 kW (805 HP) | — | T/A — Water-Air | 13.9:1 | 750 kVA prime |
| KTAA19-G6A-A | 610 kW (818 HP) | — | TAA — Air-Air | 13.9:1 | 763 kVA prime |
| KTAA19-G7-A | 610 kW (818 HP) | — | TAA — Air-Air | 13.9:1 | 763 kVA prime |
60 Hz Models (1800 RPM)
Eight model ratings serve 60 Hz generator sets (1800 RPM), with prime power from 392 kW to 664 kW for North American, Japanese and other 60 Hz markets:
| Model | Prime Power | Standby Power | Aspiration | Comp. Ratio | Approx. kVA (0.8 PF) |
|---|---|---|---|---|---|
| KTA19-G2-B | 392 kW (525 HP) | 448 kW (600 HP) | T/A — Water-Air | 13.9:1 | 490 kVA prime |
| KTA19-G3-B | 463 kW (620 HP) | 511 kW (685 HP) | T/A — Water-Air | 13.9:1 | 579 kVA prime |
| KTA19-G3A-B | 507 kW (680 HP) | 563 kW (755 HP) | T/A — Water-Air | 13.9:1 | 634 kVA prime |
| KTA19-G4-B | 507 kW (680 HP) | 563 kW (755 HP) | T/A — Water-Air | 13.9:1 | 634 kVA prime |
| KTAA19-G5-B | 533 kW (714 HP) | 605 kW (811 HP) | TAA — Air-Air | 13.9:1 | 666 kVA prime |
| KTAA19-G6-B | 620 kW (831 HP) | — | TAA — Air-Air | 13.9:1 | 775 kVA prime |
| KTAA19-G6A-B | 664 kW (890 HP) | — | TAA — Air-Air | 13.9:1 | 830 kVA prime |
| KTAA19-G7-B | 664 kW (890 HP) | — | TAA — Air-Air | 13.9:1 | 830 kVA prime |
PT Mechanical Fuel System with STC
The KTA19-G’s PT (Pressure-Time) fuel system is one of Cummins’ most enduring designs — fully mechanical, no electronic control unit required. The STC (Step Timing Control) valve adjusts injection timing based on engine load and temperature, optimizing cold-start performance and reducing smoke at idle while maintaining fuel efficiency at rated load.
Fuel Quality Tolerance
The mechanical PT system tolerates wider variations in fuel quality and cetane number compared to high-pressure common rail systems, making it ideal for remote locations and emerging markets where fuel standards may vary.
Simple Diagnostics & Repair
No ECM, no wiring harness, no proprietary diagnostic software required. Mechanics can service PT injectors and pumps with standard tools — reducing downtime in regions without Cummins dealer support.
Proven Reliability
The K19 PT platform has been in production since 1995 with millions of engines deployed worldwide. Injection pressure above 120 MPa ensures clean combustion and fuel consumption as low as 209–213 g/kW·h.
Electronic Governor Option
While fuel delivery is mechanical, all KTA19-G models include an electronic governor for precise isochronous speed control — meeting G2/G3 genset governing class requirements for frequency stability under load steps.
KTA19-G vs QSK19-G: Mechanical vs Electronic
Both engines share the same 19L K-platform block, crankshaft and many internal components, but their fuel systems define different use cases:
| Parameter | KTA19-G (PT Mechanical) | QSK19-G (MCRS Electronic) |
|---|---|---|
| Fuel System | PT pump + mechanical injectors with STC | MCRS high-pressure common rail with CM850 ECM |
| Prime Power Range | 336–664 kW | 402–667 kW |
| Emissions | Euro II / China II (non-regulated markets) | Euro III / EPA Tier 3 (regulated markets) |
| Fuel Consumption | ~209–215 g/kW·h | ~197–205 g/kW·h (3–5% better) |
| Load Acceptance | Good (G2 governing class) | Excellent (G3 governing class) |
| Noise Level | Higher combustion noise | Significantly quieter (multiple injections) |
| Fuel Quality Sensitivity | Tolerant — works with lower-grade diesel | Sensitive — requires clean, high-quality fuel |
| Diagnostics | Mechanical — standard tools | Electronic — requires INSITE software |
| Parts Commonality | ~70% of components interchangeable — block, crankshaft, rods, pistons, liners, filters, water pump, starter, alternator | |
| Best For | Emerging markets, remote sites, rental fleets, simple backup | Data centers, hospitals, regulated markets, mission-critical standby |
Engine Design Features
Cooling System
The KTA19-G comes standard with an engine-mounted radiator and cooling fan for self-contained open or silent genset packages. A gear-driven water pump provides high coolant flow, while a spin-on water filter keeps coolant clean and maintains proper acidity. For industrial applications requiring remote radiators or heat exchanger cooling (e.g., engine rooms with ducted ventilation), a remote-cooled configuration is available. Coolant capacity is approximately 45 L; recommended coolant is a 50/50 ethylene-glycol/water mix with DCA4 additive.
Aspiration & Turbocharging
Three aspiration configurations are available across the model range. Standard KTA19-G models use a Holset HX80/HX82 turbocharger with water-to-air aftercooling (TA) — the aftercooler uses engine coolant to reduce intake air temperature. KTAA19-G models (double A) use air-to-air aftercooling (TAA), which delivers denser intake charge and higher power output (up to 664 kW prime) at the cost of requiring a separate charge air cooler mounted in front of the radiator. The pulse-type exhaust manifold reduces exhaust gas temperature and improves turbo response.
Lubrication System
The KTA19-G holds approximately 36.7 L of oil (including filters) in its standard wet sump. A gear-driven oil pump maintains 50–70 PSI operating pressure, with maximum oil temperature of 121 °C. Cummins spin-on oil filters (LF9009) are mounted on the service side for quick changes. All models feature wet, replaceable cylinder liners that simplify overhaul — liners can be pressed out and replaced without machining the block.
Block & Rotating Assembly
The cylinder block is high-grade alloy cast iron with cross-bolted main bearing caps for exceptional rigidity — a key reason the K19 platform reliably handles high cylinder pressures across decades of service. Each cylinder has its own individual cylinder head (one head per cylinder) with four valves, making head gasket and valve service straightforward without removing the entire bank. The crankshaft is forged steel with induction-hardened journals and fillets. Pistons use an aluminum alloy design with a ω-shaped combustion bowl.
Electrical System & Governing
A 24V DC electrical system drives a heavy-duty positive-engagement starter motor and a 24V charging alternator. The electronic governor maintains isochronous speed control within ±0.25% steady-state, meeting ISO 8528 G2 class as standard and G3 class with optional calibration. The governor interfaces with all major genset controllers (DSE, ComAp, Woodward, Deep Sea Electronics) via standard speed bias input.
Generator Set Applications
Data Centers
Standby/backup power for server farms and IT infrastructure
Hospitals
Emergency power for operating rooms, ICU and life-support systems
Commercial Buildings
Shopping malls, hotels, offices and residential complexes
Manufacturing
Prime and standby power for factories and process industries
Mining & Quarrying
Remote-site power for crushers, conveyors and processing plants
Oil & Gas
Onshore drilling rigs, pump stations and pipeline facilities
Telecom
Cell tower and data hub backup power
Construction
Temporary power for job sites, cranes and equipment
Events & Film
Mobile power for concerts, film sets and outdoor events
Railway
Power cars and ground power units for rail applications
Rental Fleets
Durable, easy-to-service units for equipment rental companies
Agriculture
Irrigation pumps, grain handling and farmstead standby
Alternator & Genset Pairing Guide
KTA19-G engines are commonly paired with Stamford, Leroy-Somer and Mecc Alte alternators. Typical genset ratings (at 0.8 power factor):
| Engine Model | Typical Alternator | Suggested Genset Prime kVA | Standby kVA |
|---|---|---|---|
| KTA19-G2-A | Stamford HCI444F / Leroy-Somer LSA46.2 | 400–420 kVA | 450–460 kVA |
| KTA19-G3-A | Stamford HC544C / LSA47.2 | 480–500 kVA | 550–560 kVA |
| KTA19-G3A/G4-A | Stamford HC544C / LSA49.1 | 550–560 kVA | 625–630 kVA |
| KTA19-G8E | Stamford S5L1D / LSA49.1 | 600–620 kVA | 680–700 kVA |
| KTA19-G8A | Stamford S5L1D-F / LSA49.2 | 680–700 kVA | 750–760 kVA |
| KTAA19-G6-A | Stamford S5L1S / Mecc Alte ECO43 | 700–720 kVA | — |
| KTA19-G9A | Stamford S5L1S / ECO46 | 750 kVA | — |
| KTAA19-G6A/G7 | Stamford S6L1D / Mecc Alte ECO46 | 760–830 kVA | — |
Complete genset packages can be supplied as open type (industrial skid), silent type (sound-attenuated canopy, 65–75 dBA at 7m), super-silent type (55–65 dBA), mobile trailer (road-towable), or containerized (20ft/40ft ISO container for easy transport and deployment). Control panel options include Deep Sea DSE7320/DSE8610, ComAp InteliGen, and Woodward EasyGen for manual, auto-start, or multi-generator synchronization.
Maintenance Schedule
| Service Item | Interval | Notes |
|---|---|---|
| Engine oil & oil filter | 250–500 hours | 250 hrs for heavy/standby cycle; 500 hrs for continuous prime duty |
| Fuel filter(s) | 500 hours | FF5580 primary; replace more frequently with poor fuel quality |
| Air filter inspection | 500 hours | Replace when restriction indicator triggers; dual-element filter 99.5% efficiency |
| Valve lash adjustment | 2,000 hours | Intake 0.36 mm / Exhaust 0.71 mm (cold engine) |
| Coolant change | 4,000 hours / 2 years | Use DCA4 SCA additive; test concentration every 500 hours |
| PT injector service | 6,000–8,000 hours | PT injector part numbers vary by CPL; see parts list below |
| Turbocharger inspection | 8,000 hours | Check end play, oil leakage and boost pressure |
| Major overhaul | 15,000–20,000 hours | Pistons, rings, liners, bearings, valves, valve seals; wet liners simplify replacement |
Common Spare Parts for KTA19-G
Browse our complete range of Cummins engine parts for filters, gaskets, PT fuel system components and overhaul kits. For parts lookup by engine serial number or CPL, refer to the official Cummins Parts Catalog.
Why Choose BLSH Diesel for Your KTA19-G
Factory-Origin CCEC Engines
Direct supply from Chongqing Cummins with full factory documentation, serial number verification and CPL-matched build sheets.
Complete Genset Packaging
Open, silent, super-silent and trailer-mounted gensets with Stamford/Leroy-Somer alternators and DSE/ComAp controllers.
Genuine PT Parts Stock
Injectors, pumps, turbochargers and filters in stock — no aftermarket substitutes on critical fuel system components.
Global Export Experience
Sea and land freight to worldwide destinations, with export packing, container loading and documentation handled in-house.
Frequently Asked Questions
What is the difference between KTA19-G3 and KTA19-G4?
Both produce the same power output (448 kW prime / 504 kW standby at 1500 RPM). The difference is in the performance curve and fuel mapping — the G3 is optimized for prime/continuous duty with a flatter fuel consumption curve across load ranges, while the G4 is tuned for standby applications where the engine runs infrequently but must accept full load instantly. In practice, many CCEC G3A and G4 units share nearly identical hardware; the CPL and performance curve number differ. Confirm with us which rating is optimal for your application.
What does KTAA19 mean compared to KTA19?
The extra A in KTAA19 denotes air-to-air aftercooling (TAA) instead of the standard water-to-air aftercooling (TA) on KTA19 models. Air-to-air aftercooling uses a separate radiator-mounted charge air cooler to reduce intake air temperature further, enabling higher power density — up to 664 kW on KTAA19-G6A/G7 models. The trade-off is a slightly larger overall package due to the additional charge air cooler.
Can the KTA19-G run on HVO or biodiesel?
Cummins approves B20 (up to 20% biodiesel) for KTA19 engines when the fuel meets ASTM D7467 or equivalent standards. The mechanical PT system is generally more forgiving of biofuel blends than common rail systems, but fuel filter change intervals should be shortened and seal compatibility checked for long-term use above B5. HVO (renewable diesel) up to 100% is generally compatible, but confirm with Cummins for your specific CPL.
What is the fuel consumption of the KTA19-G4 at full load?
At 448 kW prime (1500 RPM), the KTA19-G4 consumes approximately 113–118 L/hr at 100% load (based on ~209–213 g/kW·h and diesel density of 0.84 kg/L). At 75% load, consumption drops to approximately 85–90 L/hr. Exact figures vary by CPL build, ambient conditions and fuel quality. We provide model-specific fuel consumption data sheets with every quotation.
What is the lead time for a new KTA19-G engine or genset?
For bare engines from CCEC factory stock, lead time is typically 15–30 working days. Complete open-type gensets (engine + alternator + controller + skid) require 25–35 working days. Silent or trailer-mounted packages may need 35–45 working days depending on canopy fabrication and controller configuration. Urgent ex-stock units may be available — contact us for current inventory.
Is the KTA19-G still in production? Should I choose it over QSK19-G?
Yes, CCEC continues to manufacture the KTA19-G series for non-emission-regulated and emerging markets where mechanical simplicity and fuel tolerance are valued over electronic features. Choose KTA19-G if: your region has variable fuel quality, local mechanics lack electronic diagnostic tools, or purchase cost is a priority. Choose QSK19-G if: you need EPA Tier 3/Euro III emissions, G3 load acceptance, quieter operation, or lower fuel consumption for continuous-run applications.
What warranty comes with a CCEC KTA19-G engine?
CCEC provides a standard 1-year or 1,000-hour warranty (whichever comes first) covering manufacturing defects in materials and workmanship, with worldwide support through the Cummins global service network. Extended warranty packages are available for an additional charge. Warranty terms are identical whether purchasing a bare engine or a complete genset package.
Do you provide complete gensets or bare engines only?
Both. We supply bare KTA19-G engines for OEM genset builders who prefer to package with their own alternators and controls, as well as complete genset packages paired with Stamford, Leroy-Somer or Mecc Alte alternators and DSE, ComAp or Woodward controllers. Gensets can be supplied as open, silent, super-silent or trailer-mounted configurations. Let us know your requirements and we will quote the most cost-effective option.
Request Your KTA19-G Quotation Today
Send us your model, frequency, power rating, genset type and destination — we respond within 24 hours with pricing, lead time and a full data sheet.
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