Komatsu 125E-5 Series Shop Manual

Detailed repair documentation for the Komatsu 125E-5 engine, covering structure, function, and maintenance standards for all major systems. SEN00177-09

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Komatsu Models Covered & Key Technical Specifications

Models: SAA6D125E-5
Sub-models / Variants: PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0, PC400-8, PC400LC-8, PC400-8R, PC400LC-8R, PC450-8, PC450LC-8, PC450-8R, PC450LC-8R, D85EX-15E0, D85PX-15E0, D85EX-15R, D85PX-15R, WA450-6, WA470-6, WA480-6, WA470-6R, WA480-6R, HM250-2, HM300-2, HM300-2R, BR580JG-1, DCA-300SSK4
Trade Names: Komatsu 125E-5 Series
Build Years: 2008
Technical Data:

  • Engine displacement: 11.0 liters (11,040 cc)
  • Configuration: In-line 6-cylinder, 4-stroke diesel
  • Rated output: 199–272 kW (266–365 HP) depending on machine configuration
  • Maximum torque: 1,272–1,706 Nm (130–174 kgm)
  • Fuel system: Common Rail Injection (CRI) with electronic control
  • Governor type: Electronic control type
Technical Specifications
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Document Number / Seller:
30449 / Matthew Taylor
File Size:
31.27 MB
File Type:
PDF
Language:
English
Pages:
589
Printable:
Yes
Category:
Diesel Engine
Last updated / verified
Jun 7, 2025

Komatsu Manual Features & Content Preview

Technical Scope for the Komatsu 125E-5 Series Engine

  • Covers the 2008 Komatsu 125E-5 Series SAA6D125E-5 diesel engine, documenting maintenance, structure, and performance for excavator, bulldozer, loader, and generator applications
  • Official Komatsu publication P/N SEN00177-09, released December 2008
  • Contains 589 pages of technical diagrams, system specifications, troubleshooting codes, and standard assembly values
  • Accessible from your device as soon as the order is placed
  • Suitable for printing individual sections for shop-floor use
  • This 2008 first edition provides the baseline performance curves and diagnostic fault codes used for the SAA6D125E-5 engine launch build

Engine Configuration and Maintenance Documentation

This Komatsu 125E-5 Series manual provides detailed technical information for workshops, covering the 6-cylinder SAA6D125E-5 engine across a wide array of construction machinery. The documentation structure divides the manual into critical system groups, covering the intake and exhaust, lubrication, fuel, and cooling circuits. Detailed descriptions explain the common rail injection system, the electronic controller interface, and the cooled EGR system configuration.

Specification and Performance Data Preview

Technical Highlights

Engine performance data for the SAA6D125E-5 is provided in extensive specification tables categorized by machine application. The SAA6D125E-5 engine displacement is documented at 11.0 liters in the technical specifications. The lubrication system capacity for the SAA6D125E-5 engine is listed at 46 liters in the refill data table. The no-load maximum speed for the SAA6D125E-5 engine is specified at 1,930 rpm in the performance tables. Reference information for how factory workshop documentation is structured is included for shop-floor guidance. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. An official 589-page Komatsu OEM workshop manual covering the 2008 SAA6D125E-5 engine, documenting engine, cooling, fuel, and electrical specifications for the 125E-5 series build.

Manual FAQ, Purchase & Download Details

What documentation exists for engine performance and fuel systems within this PDF? keyboard_arrow_down

Manual includes detailed specification tables for engine output, torque, and fuel consumption ratios, as well as diagrams for the CRI fuel system components.

Is the Komatsu 125E-5 Series engine covered in this shop manual? keyboard_arrow_down

Document provides comprehensive service documentation for the 125E-5 Series SAA6D125E-5 engine. It contains chapters covering structure, function, and maintenance standards for the engine unit and its associated systems.

Are tightening torque specifications and electrical reference values available for the electrical equipment and engine assembly? keyboard_arrow_down

Manual contains specific sections for electrical equipment and engine assembly that reference standard torque tables for fasteners. Furthermore, it includes detailed technical data for the alternator, starting motor, and engine controller. These specifications are presented in the structured service sections to support users with relevant reference data.

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