C4.4 (60 HZ) | 72-100 kW Diesel Generator

Diesel Generator Sets C4.4 (60 Hz)

Request A Price Find Dealer

Key Specs

Maximum Rating
100 ekW
100 ekW
Minimum Rating
72 ekW
72 ekW
Emissions/Fuel Strategy
U.S. EPA Cert., Tier 3
U.S. EPA Cert., Tier 3


72 - 100 ekW Diesel Generator Set

Producing reliable power from 72 to 100 ekW at 60 Hz, our C4.4 diesel generator sets designed to ISO 8528-5 transient response requirements. All C4.4 generator sets meet EPA Stationary Emergency (Tier 3) emissions standards.


Suitable for Harsh & Testing Environments

Optimised for 5% Lower Fuel Consumption

Longer run times between fuel fills; reduced operating costs

Reliability tested for minimum 500 Hours

Ensures you can count on emergency power when it is needed

Product Specifications for C4.4 (60 Hz)

Maximum Rating 100 ekW 100 ekW
Minimum Rating 72 ekW 72 ekW
Emissions/Fuel Strategy U.S. EPA Cert., Tier 3 U.S. EPA Cert., Tier 3
Voltage 110 to 480 Volts 110 to 480 Volts
Frequency 60 Hz 60 Hz
Speed 1800 rpm 1800 rpm
Duty Cycle Standby, Prime Standby, Prime
Engine Model Cat® C4.4 Cat® C4.4
Bore 4.1 in 105 mm
Stroke 5 in 127 mm
Displacement 268.5 in³ 4.4 l
Compression Ratio 16.2:1, 17.25:1, 18.2:1 or 18.3:1 16.2:1, 17.25:1, 18.2:1 or 18.3:1
Aspiration Turbocharged Turbocharged
Fuel System Direct Injection or Common Rail Direct Injection or Common Rail
Governor Type Mechanical Mechanical
Length - Maximum 75.8 in 1925 mm
Width - Maximum 44.1 in 1120 mm
Height - Maximum 53.6 in 1361 mm

C4.4 (60 Hz) Standard Equipment

Air Inlet System

  • Air cleaner; light duty with disposable element

Cooling System

  • Radiator and cooling fan with guards
  • Coolant drain line with valve
  • Fan drive, battery charging alternator drive
  • Caterpillar extended life coolant

Control Panel

  • GCCP 1.3

Exhaust System

  • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose

Fuel System

  • Standard open set fuel tank/base supplied base, formed steel with single wall integral 8-hour fuel tank


  • Voltage regulator (single phase sensing)
  • 12 Leads
  • IP23 Protection
  • Circuit breaker, IEC, 3 pole, mounted in tower panel
  • Segregated low voltage (AC/DC) wiring panel
  • Tower panel, IP22, bottom cable entry

Governing System

  • Mechanical and electrical governing system - model dependent

Lube System

  • Oil drain line with valve
  • Lubricating oil

Mounting System

  • Termination points for coolant and lube oil drain lines
  • Includes lifting provision and drag points
  • Captive linear vibration isolators between base and engine-generator

Starting/Charging System

  • 24V battery with rack and cables
  • Batteries


  • Engine and alternator pre-paint, Caterpillar yellow

C4.4 (60 Hz) Optional Equipment

Alternator System

  • Permanent magnet excitation (PMG)
  • R Frame auxilliary winding
  • Anti-condensation heater
  • R Frame auxilliary winding
  • Quadrature droop kit
  • LC Frame alternator with coastal insulation protection
  • 3 phase sensing

Circuit breakers

  • Circuit breaker upgrades - 4 Pole circuit reaker to 250A, 400A and 630 A

Cooling System

  • Low coolant level shutdown
  • Coolant heater
  • Low coolant temperature alarm

Control Panel Options

  • GCCP 1.3
  • Control panel heater
  • Earth leakage (2 wire only)
  • Panel mounted audible alarm
  • Volt free contacts
  • Emergency stop with key
  • Battery charger
  • Overload shutdown via breaker
  • Speed adjust potentiometer
  • Voltage adjust potentiometer


  • Sound attenuated Level 2 enclosure
  • Sound attenuated Level 1 (galv)
  • Rental pack - CAE rental option only

European Certifications

  • Upgrade to STD set for CE

Fuel System

  • Skidbase for CALG enclosure sets
  • Low fuel level alarm
  • Open set narrow tankbase
  • Low fuel level shutdown
  • Compact skidbase for open set
  • High fuel level alarm
  • Bunded fuel tank

Global Certifications

  • Certification for CIS

Mounting Options

  • Electronic governor
  • Industrial silencer
  • External single point lift - enclosure
  • Battery removal
  • Silencer installation kit

Special Packing/Inspectons for Shipment

  • PGS Test report @ 0.8 power factor
  • PGS Test report @ 1.0 power factor

General - Accessories / Miscellaneous

  • Packing case - compact set
  • Packing case - canopied set
  • Stone guards/rad trans flange

See how C4.4 (60 Hz) compares against frequently compared products.

Service Agreement (Cat® CVA & LTSA)

Experience hassle-free ownership and predictable expenses with flexible Customer Value Agreements, which include Long-Term Service Agreements.

Learn More

Cat RAM and Condition Monitoring

Observe and manage your fleet from anywhere with Cat RAM, and benefits from real-time monitoring by expert advisors with Condition Monitoring.

Learn More

Maintenance and Repairs

Retain genset value with maintenance, upgrade kits, and repair options that extend lifecycles, optimise performance, and help you control costs.

Learn More


Shop for genuine and Cat Reman parts online, with access to price, inventory, and 24/7 expert support.

Learn More

Media Gallery

C4.4 Open Set Rear Right

C4.4 Open Set Rear Left

C4.4 Open Set Front Right

C4.4 Open Set Front Left



C4.4 Open Set Rear Right
C4.4 Open Set Rear Left
C4.4 Open Set Front Right
C4.4 Open Set Front Left

360 View
360 View

Check out current offers for the C4.4 (60 Hz)

View More Offers