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CM25C Generator Set

Caterpillar electric power stands for reliable energy supply. Especially during the energy system transformation, Cat generator sets close the energy gap caused by renewable energy source such as wind and photo voltaic. Short ramp up time, low operating costs and rapid maintenance times ensures a high availability according to the need of our customers. Combined heat /cool and power solutions allow our customers to maximize the efficiency and earnings paired with low emissions. Wherever power is needed around the globe, Caterpillar is able to support you with the best products and services to maximize your profit.

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  • Minimum Rating 1735 kWe
  • Maximum Rating 2600 kWe
  • Emissions/Fuel Strategy (WB) Cert stage 1 and 2
  • Voltage 3000 to 13800 Volts

Call 440-838-7348 for rate information

Generator Set Specifications

  • Minimum Rating
    1735 kWe
  • Maximum Rating
    2600 kWe
  • Emissions/Fuel Strategy
    (WB) Cert stage 1 and 2
  • Voltage
    3000 to 13800 Volts
  • Frequency At Speed
    50 Hz @ 750 / 60 Hz @ 720
  • Duty Cycle
    Prime, Continuous
  • Ready To Accept Loads (Preheated/Vented)
    40 s
  • Normal Ramp Up To 100% Load
    75 s
  • Emergency Ramp Up 10% To 100% Load
    25 s
  • Genset Efficiency Up To

Engine Specifications

  • Engine Model
    CM25C, 4-stroke-engine
  • Bore
    10.04 in
  • Stroke
    15.75 in
  • Aspiration
  • Engine Rating Range
    1800 - 2700 kW
  • Configuration
    6,8,9 cylinder
  • Fuel Type
    Diesel oil / heavy fuel oil (HFO) / crude oil
  • Swept Volume
    1247 in³
  • Mean Effective Pressure Up To
    355 psi
  • Specific Fuel Oil Consumption (WB I) Up To
    0.406 Ib/kWh
  • Specific Fuel Oil Consumption (WB II) Up To
    0.408 Ib/kWh
  • Specific Lube Oil Consumption
    0.001 Ib/kWh

Generator Set Dimensions

  • Length - Minimum
    318 in
  • Length - Maximum
    375 in
  • Width - Minimum
    98 in
  • Width - Maximum
    100 in
  • Height - Minimum
    154 in
  • Height - Maximum
    156 in
  • Dry Weight - Genset (minimum)
    94799 lb
  • Dry Weight - Genset (maximum)
    123459 lb

Reliable Operation

  • Intensive cooling of key components including exhaust valve seats, injector cooling integrated into lube oil system
  • Reliable, proven and high efficient single turbo charging system
  • Classification society standards ensure high safety and quality
  • Intelligent simplicity ensures a robust engine platform
  • Optimized service schedules enable high availability and long durability

Control & Monitoring

  • Ultrafast start time and load acceptance
  • No engine start limitations
  • Continuous power (base and peak load), prime power, stand-by
  • Part load with high efficiency
  • Monitoring for unattended operation
  • Asset intelligence system

Ease Of Installation

  • Reduced complexity of standard modular design allows an easy installation
  • Low space requirements between the gensets
  • Genset is ready for installation
  • Generator set designed for direct elastic mounting

Ease Of Operation

  • Low fuel and oil consumption
  • Low maintenance requirements
  • Operator and maintenance training courses available

Intelligent Simplicity

  • High reliability, modular design and integral construction reduce the number of components by 40% over conventional designs e.g.:
    - Dry engine block with integrated ducts for lubricating oil and charge air and underslung crankshaft
    - Compact cylinder head design
  • Smart maintenance solutions:
    - Easily removable cylinder heads, quick removable fluid connections
    - Split connecting rods to allow fast and easy piston removal without disturbing the big end bearing
    - Segmental camshaft design
    - Simplified parts spectrum by using single-pipe exhaust gas
    - Engine block free from cooling water
  • State-of-art material ensures long life time

Ease Of Maintenance

  • Smart maintenance solutions allow an easy component accessibility
  • Large inspection openings afford an easy serviceability to core engine internals
  • Core engine components designed for reconditioning and reuse
  • Short maintenance times enable high availability
  • No engine removal necessary for maintenance and overhauls


  • Liquid: Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
  • Dual:
    - Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
    - Natural gas with methane number > 80 and lower heating value of 28MJ/Nm3
  • Gaseous: Natural gas with methane number > 80 and lower heating value of 31.5 MJ/Nm3


  • World bank emission certification (Stage 2)
  • Technische Anleitung (TA) Luft (only gas)
  • Post-emission treatment systems for lower emission requirements available

Expertise & Experience

  • Assistance for planning - delivery - commissioning - operation and service)
  • Expertise and experience for solutions to maximize benefits, e.g. combine heat and power systems (CHP)

World Wide Product Support

  • With nearly 200 Cat dealers we are at home around the globe
  • Factory-trained technicians, original parts and support are never out of reach
  • Long term service agreements offer back-to-back services from preventive maintenance, scheduled maintenance to full operation and maintenance of your asset

Standard Equipment:

  • Fuel System
    • Gas valve unit (GVU) (only dual fuel (DF) and gas)
    • Engine ventilation module (only dual fuel (DF) and gas)
    • Circulation module
    • Separator module
    • Pre-pressure module
    • Ignition fuel oil module (only dual fuel (DF))
  • Lubricating Oil System
    • Combined module: cooling water system and lube oil system
    • Lube oil separator module
    • Piping interface module
  • Cooling Water System
    • Cooling water system with radiators
    • Piping interface module
    • Combined module: see lube oil system
  • Starting System
    • Starting air receiver module
    • Starting air compressor module
  • Combustion Air System
    • Air filter - pulse
    • Air filter - oil bath
    • Air filter - pocket
  • Exhaust System
    • Oxidation catalytic (Oxicat) converter system
    • Exhaust gas ventilation module (only dual fuel (DF) and gas)
    • Exhaust gas silencer
    • Selective catalytic reduction (SCR) system
  • Control & Monitoring System
    • Gas leak detection per cylinder (only dual fuel (DF) and gas)
    • Local data panel (LDP) / generator control panel (GCP)
    • Engine monitoring package
    • Local control panel (LCP)
    • Motor control center module (MCC)
  • Mounting System
    • Elastic mounting - genset/engine

Optional Equipment:

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