Exterior View
Exterior View
Exterior View
Exterior View
Interior View
Interior View
Maximum Rating

125 ekW

Minimum Rating

125 ekW

Emissions/Fuel Strategy

U.S. EPA Cert., Tier 3

D125 GC Generator Set

ABOUT THE d125 GC

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Add the D125 GC GENERATOR SET Model to the Cart
Maximum Rating
125 ekW
Minimum Rating
125 ekW
Emissions/Fuel Strategy
U.S. EPA Cert., Tier 3
Voltage
208 to 600 Volts
Frequency
60 Hz
Speed
1800 rpm
Duty Cycle
Standby
Engine Model
C7.1 I-6, 4-Cycle Diesel
Bore
4.1in
Stroke
5.3in
Displacement
428in³
Compression Ratio
16.7:1
Aspiration
Turbocharged, Air to Air Aftercooled
Fuel System
Electronic, Common Rail
Governor Type
ADEM™A4
Length – Maximum
103.7in
Width – Maximum
51.2in
Height – Maximum
52.2in
Dry Weight – Genset (maximum)
3099lb
  • Air Inlet System
    • Air cleaner; light duty with disposable element
  • Control Panels
    • GCCP 1.2 Control panel
  • Cooling System
    • Fan drive, battery charging alternator drive
    • Coolant drain line with valves
    • Caterpillar extended life coolant
    • Radiator and cooling fan with guards
  • Generator And Generator Attachments
    • Segregated low voltage (AC/DC) wiring panel
    • IP23 Protection
    • Circuit breaker, IEC, 3 pole, mounted in tower panel
    • Voltage regulator (single phase sensing)
    • Tower panel, IP22, bottom cable entry
    • 12 Leads
  • Exhaust System
    • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use – shipped loose
  • Fuel System
    • Base, formed steel with single wall integral 24-hour fuel tank
    • Standard open set fuel tank/base supplied
  • 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
  • Governing System
    • Mechanical and electrical governing system – model dependent
  • General
    • Engine and alternator pre-paint, Caterpillar yellow
  • Alternator System
    • Alternator removal
    • Optional LC Frame alternator
    • R Frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
    • Permanent magnet excitation (PMG)
    • Anti-condensation heater
    • 3 Phase sensing
    • Quatrature droop king
  • Circuit Breakers
    • Padlockable breaker device
    • 4 Pole 250A, 400A and 630A Circuit breakers
  • Control Panel Options
    • Battery charger
    • Control panel heater
    • Earth fault (2 wire only)
    • Volt free contacts
    • Emergency stop with key
    • Speed adjust potentiometer
    • Earth leakage (2 wire only)
    • Overload shutdown via breaker
    • Speed adjust contacts
    • Panel mounted audible alarm
  • Control System
    • Volt free contacts for generator set running
    • Volt free contacts for common alarm
    • Static battery charger
    • GCCP 1.2
  • Cooling System
    • Coolant heater
    • Low coolant temperature
    • Low coolant level shutdown
  • Enclosures
    • Sound attenuated level 2 enclosure
  • Mounting Options
    • Silencer installation kit
    • Residential silencer
    • Battery removal
    • Industrial silencer removal
    • Electronic governor
  • Fuel Systems
    • Low fuel level shutdown
    • Open set narrow tankbase
    • Skidbase for CALG enclosure sets
    • DEFRA bunded fuel tank
    • Low fuel level alarm
    • Compact skidbase for open sets
    • High fuel level alarm
  • Test Reports
    • PGS Test report @ 0.8 power factor
    • PGS Test report @ 1.0 power factor
  • General
    • Stone guards/radiator trans flange
  • Global Certifications
    • Certification for CIS
  • Power Termination
    • Circuit breaker, IEC, 4 pole
  • Accessories / Miscellaneous
    • Packing case – compact set
    • Packing case – canopied set

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Terms and Conditions

Small Excavators Big Savings: Terms and Conditions

* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

The Great Payback: Terms and Conditions

*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on select new Cat® machines listed in our Heavy Equipment Promotion page. Purchase must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The offered Cat Customer Value Agreement (CVA) includes 6 maintenance parts kits; S∙O∙SSM; and 36 month VisionLink® ConnectPro. The maintenance parts cover the first 3,000 hours^ (estimated 3 years) of machine utilization. Each kit contains one set of parts for regular planned maintenance under normal operating conditions. In some severe applications where maintenance parts need to be replaced more frequently, additional parts will be at customer’s expense. Offer excludes additional maintenance parts, dealer labor, wear parts, and fluids. Offer also includes a 36 month/5000 hour (whichever occurs first) Powertrain, Hydraulics and Technology Equipment Protection Plan (EPP). In some areas, EPP might be sold separately from the CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply. Contact your Cat dealer for details.

Compact Equipment Offer: Terms and Conditions

Financing provided by Caterpillar Financial.
*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on purchases of new mini excavators, micro excavators, skid steer loaders, and compact track loaders sold by participating Cat dealers to customers in the USA or Canada. Purchases (both machine and CVA) and machine delivery must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The credit $500 USD for CVA purchase can only be applied toward the purchase of a qualifying Cat Customer Value Agreement (CVA). CVA must be at least 2yr/1000hr and must include 1-year Preventative Maintenance Parts Kit, TA1 annual Inspection, signed CVA contract, and Product LinkTM. Amount of CVA credit is the same for all models and cannot exceed the price of the qualifying CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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