Caterpillar D9G
Cat D9G with CCU at EM wd 2011 - IMG 0519
A restored Caterpillar D9G fitted with a Cable Control Unit (CCU) for operating towed scrapper boxes
Model history
Model introduced 1961
Model discontinued 1974
Model status Discontinued
Preceded by Caterpillar D9E
Superseded by Caterpillar D9H
Engine Specification
Engine make Caterpillar
Engine model D353
Fuel type Diesel
Power hp 385
Power kW 287
No. of Cylinders 6
Cooling system Water
Transmission Details
Transmission type Unknown
Drive tracked
Linkage Category Unknown
Other info
Factories USA
Plow rating Unknown
Web site
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Cat D9G at EM wd 2011 - IMG 0517

Caterpillar D9G at the East Midlands and Link Club Working Day

The Caterpillar D9G was a 385 hp (287 kW) crawler tractor built by Caterpillar Inc. in the USA from 1961 until 1974. The Caterpillar D9G superseded the Caterpillar D9E and was replaced by the uprated Caterpillar D9H.

For many years these were the biggest machines to be regularly found in the UK mainly operating on opencast sites and quarries pulling towed scrapers or with a bulldozer blade stripping overburden & push loading Motor scrapers. The Twin-engined Euclid Dozer was bigger, but very rare.


Caterpillar D9G - 66A series

  • 385 hp (flywheel) - 6-Cylinder Diesel Caterpillar D353 engine
  • Turbocharged with after-cooler
  • 3 - speed powershift planetary transmission
Optional equipment included;
  • CCU for Blade or Scraper box
  • Cat 9C Cushion blade for push loading
  • Cat 9S Bulldozer blade
  • Cat 9B Ripper bar
  • Leverton cab in the UK

add further details here


Due to the size and weight few examples are in preservation in the UK as most were worked to death or exported when newer machines cam in or a downturn rendered them surplus to requirements and they were sold off at auction.

Known examples;

See alsoEdit

References / sourcesEdit

External linksEdit

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