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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.

Generator Set

  • Rating Prime 340 ekW (425 kVA) 340 ekW (425 kVA)
  • Frequency 50/60 Hz 50/60 Hz
  • Voltage 120 - 600V 120 - 600V
  • Rating Standby 375 ekW (469 kVA) 375 ekW (469 kVA)


  • Engine C13 ACERT C13 ACERT
  • Fuel Diesel Diesel


  • Height - Without Trailer 60.0 in 1524.0 mm
  • Length - Without Trailer 208.7 in 5080.0 mm
  • Width - Without Trailer 104.0 in 2642.0 mm
  • Weight with Lube Oil and Coolant, Without Trailer 14700.0 lb 6667.0 kg

Fuel Consumption Prime

  • 100% Load 60Hz Prime 23.1 gal/hr 88.0 l/hr
  • 75% Load 60Hz Prime 17.7 gal/hr 67.9 l/hr
  • 50% Load 60Hz Prime 12.7 gal/hr 48.6 l/hr

Fuel Consumption Standby

  • 100% Load 60Hz Standby 25.1 gal/hr 95.7 l/hr
  • 75% Load 60Hz Standby 19.2 gal/hr 73.4 l/hr
  • 50% Load 60Hz Standby 13.6 gal/hr 52.3 l/hr

Noise rating (with enclosure)

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

XQ425 Standard Equipment

CAT C13 Diesel Engine

  • Heavy-duty.
    After treatment.


  • 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.


  • Single, robust enclosure for controls and distribution c/w 4 pole circuit breaker and safety cut off.


  • 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.


  • Sound attenuating, galvanised steel enclosure with exceptional noise reduction performance.


  • Integrated spark arresting silencer.

Lube Oil

  • On engine primary and secondary oil filters. Filled from factory.


  • Factory tested and inspected.

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