Cummins is one of the most advanced generator manufacturers in the United States to use AI in their generator technology. It leverages machine learning algorithms to provide information on diagnosing issues, maintenance needs, and engine health. In this blog, discuss the top 10 Cummins generators for Sale in 2025 and their specifications.
Cummins KTA50 – 1000kW
The Cummins KTA50 is a durable, 4-stroke, 16-cylinder V-engine with a displacement of 50 liters. Their specifications are as follows:
Specifications:
- Configuration: 16-cylinder V-engine.
- Displacement: 50 liters (3067 in³).
- Bore & Stroke: 159 mm x 159 mm (6.25 in x 6.25 in).
- Fuel System: direct injection.
- Turbocharger & Aftercooler: Yes.
- Rotation: Counterclockwise facing flywheel.
- Dimensions:
- Overall Length: 2694 mm (106 in).
- Overall Width: 1564 mm (62 in).
- Overall Height: 2260 mm (89 in).
- Weight: 5166 kg (11389 lbs).
Cummins QSK78 2400 KW
The Cummins QSK78 engine, configured for 2400 kW (3000 kVA) output, is featured with direct fuel injection and a high-pressure fuel system. Their specifications are as follows:
Specifications:
- Engine Type: 60° Vee 18-Cylinder
- Aspiration: Two-stage turbocharged, Intercooled, and Aftercooled
- Displacement: 77.6 liters (4735 cu in)
- Oil System Capacity: 288 liters (304 US quarts)
- Coolant Capacity: 166.6 liters (176 US quarts)
- Fuel System: Direct Injection Cummins HPI
- Battery Capacity: 1400A
- Battery Charging Alternator: 55 amps
- Starting Voltage: 24-volt, negative ground
- Cooling System: 104°F (40°C) ambient
- Fuel Filter: Triple element, 10-micron filtration, spin on fuel filter with water separator
- Air Cleaner Type: Dry replaceable element
- Lube Oil Filter Type(s): Four spin-on, combination full flow and bypass filters
- Engine Weight:
- Dry: 10,800 kg (23,810 lbs)
- Wet: 11,640 kg (25,662 lbs)
- Dimensions:
- Length: 3,327 mm (131 in)
- Width: 1,663 mm (65.5 in)
- Height: 2,429 mm (95.6 in)
Cummins LTA10 – 250KW
The Cummins LTA10-G1 250kW generator features a 380-horsepower engine, 60Hz frequency, 480V voltage, and a 250kW/313kVA rating. Their specifications are as follows:
Specifications:
- Engine: Cummins LTA10-G1, diesel-fueled.
- Horsepower: 380 hp.
- Power Output (KW): 250 kW (Standby), 210 kW (Prime).
- KVA: 313 kVA (Standby), 263 kVA (Prime).
- Frequency: 60 Hz.
- Voltage: 480 V.
- RPM: 1800.
- Dimensions (L x W x H): Approximately 134 inches x 50 inches x 63.7 inches.
- Dry Weight: Roughly 5900 lbs (2676 kg).
- Wet Weight: Approximately 6090 lbs (2762 kg).
- Coolant Capacity: Around 13 US gallons (49.2 liters).
- Fuel Tank Capacity: Often includes a 660-gallon base fuel tank.
- Features: Engine-driven radiator, digital control panel, breaker, vibration isolators, unit-mounted load bank, sound-attenuated enclosure.
Cummins NTA855 – 400KW
The Cummins NTA855-G5 generator set featured cast iron cylinders, direct injection, and a 24-volt negative ground starting system. Their specifications are as follows:
Specifications:
- Power Output: 400 kW (500 kVA)
- Frequency: 60 Hz
- Voltage: 480 V
- Speed: 1800 RPM
- Engine Type: Four-stroke, inline, turbocharged diesel
- Displacement: 14.0 liters (855 in³)
- Cylinders: 6-cylinder, cast iron
- Starting Voltage: 24V negative ground
- Fuel System: Direct injection
- Oil Capacity: 38.6 liters
- Included Features: Engine-driven radiator, control panel, weatherproof enclosure
Cummins NTA855 – 400KW
The Cummins NTA855 is a 400kW diesel engine that is featured with a cast iron cylinder block and a direct injection fuel system. Their specifications are as follows:
Specifications:
- Type: Four-stroke, inline, turbocharged.
- Cylinder: 6-cylinder.
- Displacement: 14.0 liters (855 cubic inches).
- Fuel system: Direct injection.
- Bore and Stroke: 140 mm x 152 mm (5.5 in x 6.0 in).
- Cooling system: Water-cooled, with a built-in circulating pump and thermostat.
- Filters: Spin-on fuel filters with water separator, and spin-on full-flow lube oil filter.
- Battery charging alternator: 55 amps.
- Starting voltage: 24 volts, negative ground.
- Rated Power/Speed: 310 kW/415 HP @ 1500 rpm.
- Standby Output/Speed: 343 kW/460 HP @ 1500 rpm.
- Torque @Rated/Standby Output: 1974/2184 N.m @ 1500 rpm.
Cummins KTA50-G3 – 1250kW
The Cummins KTA50-G3 1250kW generator set featured a 16-cylinder, 4-cycle, 60-degree Vee, diesel engine with a 50.3L displacement. Their specifications are as follows:
Specifications:
- Engine Model: KTA50-G3
- Cylinder Configuration: 16-cylinder, 60-degree Vee
- Displacement: 50.3 liters
- Horsepower: 1850 hp at 1800 RPM
- Fuel Type: Diesel
- Cooling System: Radiator cooled
- Governor: Electronic
- Air Cleaner: Dry type
- Starting: 24-volt electric starter
- Alternator: 24-volt alternator
- Rating: 1250kW (1562.5 kVA)
- Application: Standby, Prime, or Continuous power
- Voltage: 277/480V
- Frequency: 60 Hz
- Phase: Three-phase
- Alternator: Brushless
- Governor: Electronic
- RPM: 1800
- Enclosure: Sound attenuated
- Power Factor: 0.8
- Breaker Size: 2000 Amp
Cummins QST30 – 750kW Tier 2
The Cummins QST30-G1 750kW generator set is a standby diesel generator with an 1135 horsepower engine. Their specifications are as follows:
Specifications:
- Engine: Cummins QST30-G1.
- Horsepower: 1135.
- Generator Output: 750 kW.
- Fuel Type: Diesel.
- Voltage: 277/480V.
- Frequency: 60 Hz.
- Phase: Three-phase.
- RPM: 1800.
- Cooling: Radiator-cooled.
- Features: Autostart, safety shutdowns, dry-type air cleaner, brushless excitation, no PMG, block heater, muffler
Cummins GTA28 – 500KW
The Cummins GTA28 500kW natural gas generator set typically has a power output of 500kW and 625 kVA. Their specifications are as follows:
Specifications:
- Model: GTA28
- Displacement: 28 liters (1709 in3)
- Engine Type: Natural gas engine
- RPM: 1800
- Horsepower: 770 hp
- Compression Ratio: 10:1
- Fuel: Natural gas
- Power Output: 500 kW (continuous) / 500 kVA
- Voltage: 480V (common, but can be configured)
- Frequency: 60 Hz
- Alternator: Often Katolight or Newage
- Phase: 3-phase
- RPM: 1800
- Type: Brushless, 4-pole, drip-proof revolving field
- Excitation: Permanent Magnet Generator (PMG)
Cummins 6CTA8.3 – 200kW
The Cummins 6CTA8.3 engine, when configured for a 200kW generator set. The engine has a dry air cleaner and a radiator cooling system. Their specifications are as follows:
Specifications:
- Engine Model: Cummins 6CTA8.3 (or 6CTAA8.3-G1 for generator sets).
- Configuration: Inline 6-cylinder, 4-stroke diesel.
- Aspiration: Turbocharged and aftercooled (6CTA).
- Displacement: 8.3 liters (505 cubic inches).
- Bore x Stroke: 114 mm x 135 mm (4.49 in x 5.32 in).
- Fuel System: Mechanical fuel injection (inline pump).
- Governor: Mechanical flyweight governor.
- Cooling System: Radiator or other cooling options (e.g., heat exchanger).
- Max Power Output: 160 and 208 kW (220-260 kVA).
Cummins VTA1710 – 400KW
The Cummins VTA1710 is a 400 KW diesel generator set, typically rated at 440KW, 60Hz, and operating at 1800 RPM. Their specifications are as follows:
Specifications:
- Power: 400KW or 440KW
- Frequency: 60Hz
- RPM: 1800
- Voltage: 120/208V or 480V
- Features: Engine-driven radiator, heavy-duty air cleaner housings
Powergen Enterprises is one of the prominent providers of used and new diesel generators for sales and rentals. Our technicians will understand your power requirements and suggest the right generator suitable for your industry or business. Talk to our expert today to find which of the top 10 Cummins Diesel generators will improve your business productivity through a consistent power supply.
FAQs
What are the 10 Cummins Diesel Generators for Sale in 2025?
The top 10 Cummins Diesel Generators KTA50 , QSK78, LTA10, NTA855, NTA855, KTA50-G3, QST30 and 6CTA8.3.
What are the factors involved in choosing the right John Deere generator?
To choose the right Cummins Diesel generator, consider factors such as fuel type, power requirements, type of application, budget, features, size, and weight.
