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The Cat® XQ425 provides world class performance and enhanced usability. This model is powered by the fuel-efficient Cat C13 ACERT® engine equipped with the Cat NOx Reduction System. Equipped with the new EMCP 4.4 control panel, the XQ425 features a user-friendly interface and automatic generator set paralleling. A principle advantage of the control system offers simpler and faster voltage changes. Providing greater flexibility when moving between multiple job sites with differing frequency and voltage needs, the auto-configuration capability eliminates the time required when reprogramming units and potential errors. Additional features include lower noise levels and improved part load fuel consumption.

360 View not available for this product.

  • Rating 375 ekW (470 kVA) Standby
  • Frame Size SR4B – 450
  • Pitch 0.750
  • Number of bearings Single bearing, close coupled

Call 440-838-7348 for rate information


  • Rating
    375 ekW (470 kVA) Standby
  • Frame Size
    SR4B – 450
  • Pitch
  • Number of bearings
    Single bearing, close coupled
  • Insulation
    Class H
  • Temperature rise
    105 C
  • Enclosure
    Drip proof IP23
  • Prime Rating
    340 kW
  • Overspeed capability – % of rated
    125% of rated
  • Voltage regulator
    3 phase sensing with Volts-per-Hertz
  • Voltage regulation
    Less than ± 1⁄2% voltage gain Adjustable to compensate for engine speed droop and line loss
  • Wave form deviation
  • Telephone Influence Factor (TIF)
    Less than 50
  • Harmonic Distortion (THD)
    Less than 5%
  • Rating
    340 ekW (425 kVA)
  • Rating Standby
    375 ekW (469 kVA)
  • IPP Rated 60Hz
    74 dB(A)

Generator Set

  • Voltage
    120 - 600V
  • Frequency
    50/60 Hz


  • Engine
    C13 ACERT
  • Fuel
  • Cat® Diesel Engines
    C13 ATAAC, I-6 4-stroke water cooled diesel
  • Bore
    5.10 in
  • Stroke
    6.20 in
  • Displacement
    763 in3
  • Compression ratio
  • Engine RPM
  • Aspiration
  • Aftercooler type
  • Turbocharger
  • Fuel system
  • Governor type
    ADEM™ A4
  • Fuel
    Requires ULSD
  • Cat® Diesel Engines
    C13 ATAAC, I-6 4-stroke water cooled diesel


  • Width - Without Trailer
    104 in
  • Width - With Trailer
    102 in
  • Height - Without Trailer
    60 in
  • Height - With Trailer
    126.1 in
  • Length - Without Trailer
    208.7 in
  • Length - With Trailer
    283.7 in
  • Weight - Without Trailer, With Lube Oil and Coolant
    14700 lb
  • Weight - With Trailer, Lube, Oil and Coolant
    17930 lb
  • Weight
    14700 lb

Fuel Consumption Prime

  • 100% Load 60Hz Prime
    23.1 gal/hr
  • 75% Load 60Hz Prime
    17.7 gal/hr
  • 50% Load 60Hz Prime
    12.7 gal/hr

Fuel Consumption Standby

  • 100% Load 60Hz Standby
    25.1 gal/hr
  • 75% Load 60Hz Standby
    19.2 gal/hr
  • 50% Load 60Hz Standby
    13.6 gal/hr

Noise rating (with enclosure)

  • Sound Power @ 7 meters (23 feet) @ All Ratings
    74 dB(A)

Rental ready

Robust, durable product with a range of rental ready features to meet job requirements and applications.

Fuel/Emissions Strategy

Meets U.S. EPA Tier 4 Final emission standards and CARB certified for non-road mobile applications at all 60 Hz ratings

Cat C13 Diesel Engine

Industry proven reliability

CAT EMCP 4.2 digital controls

Easy to use digital controls

Cat SR4B Series Generator

Integrated voltage regular for fast response in demanding applications

Sound Isolated Operator panel

Improved operator comfort

Cat Connect

Remote monitoring for fleet management and asset tracking

Factory designed, built and tested

Single-source Supplier

World Wide Product Support

Supported by an industry leading global dealer network

500 hr oil change intervals

Reducing operating costs and producing less waste

Improved transportability

Lifting frame, 4 point lift and trailers

Power Distribution

Distribution sockets

Additional options

Synchronising controls.
Extended Service interval kits
600V generator
208V 3-phase NEMA Sockets

Standard Equipment:

  • Cat C13 Diesel Engine
    • Heavy-duty.
      After treatment.
  • Generator
    • SR4B - 450 frame.
  • Control Panel
    • Digital EMCP4.2 set mounted controller.
  • Cat Connect Remote Monitoring
    • Provides package monitoring and management.
  • Cooling System
    • Package mounted radiator with vertical air discharge.
      Filled from factory.
  • Charging / Starting System
    • 12V heavy duty starting motor and charging alternator c/w battery isolator.
  • Fuel System
    • 24hr dual wall fuel tank with 3 way directional valve for external supply.
  • Air Filter
    • Cyclonic/paper with dust cup and service indicator.
  • Distribution
    • Single, robust enclosure for controls and distribution c/w 4 pole circuit breaker and safety cut off.
  • Structure
    • Heavy Duty steel base frame with integral fuel tank.
      Lifting frame and 4 point lift.
      Base frame is wider than enclosure to protect generator set during transportation.
  • Enclosure
    • Sound attenuating, galvanised steel enclosure with exceptional noise reduction performance.
  • Exhaust
    • Integrated spark arresting silencer.
  • Lube Oil
    • On engine primary and secondary oil filters. Filled from factory.
  • General
    • Factory tested and inspected.

Optional Equipment:

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