Below are some pictures of postwar Caterpillar tractors.
1946 Caterpillar D4 Special AG HFI 403 on August 1, 2009
1949 Caterpillar D2 on August 1, 2009
1949 Caterpillar D2 on August 1, 2009
1949 Caterpillar D6 Special AG HFI 608 on August 1, 2009
1952 Caterpillar D2 on August 1, 2009
Caterpillar D4 on August 1, 2009
Caterpillar D4 Scraper Cat Dozer with Caterpillar 40 Scraper on August 1, 2009
Caterpillar D4 Scraper Cat Dozer with Caterpillar 40 Scraper on August 1, 2009
Caterpillar D4 Orchard on August 1, 2009
Caterpillar D4 Orchard on August 1, 2009
1955 Caterpillar D9D on August 1, 2009
This 1955 Caterpillar D9D was the first D9 delivered in Oregon in 1955.
1979 Caterpillar Dual Quad-Trac D9 on August 1, 2009
In the early 1950s, 148-horsepower Caterpillar D8 tractors were commonly used in the construction industry to push load scrapers, but were underpowered. Caterpillar introduced a 185-hoursepower version of the D8, followed in 1955 by the 286-horsepower D9D, but it still wasn't enough, and competitor Terex introduced their TC12 with two Detroit diesel engines producing over 500 horsepower.
1979 Caterpillar Dual Quad-Trac D9 on August 1, 2009
In 1964, R. A. "Buster" Peterson of the Peterson Tractor Company designed this arrangement, combining the horsepower of two D9Gs to reduce cycle times in scraper loading applications while requiring only one operator. Caterpillar adopted the design in 1968 and built them until 1980 when the D10 was introduced and replaced it. This 1979 Caterpillar Dual Quad-Trac D9, using two D9H tractors, was one of the last built in 1979.
Caterpillar 988 Wheel Loader on August 1, 2009
This is a Caterpillar 988 Wheel Loader.
Caterpillar 988 Wheel Loader on August 1, 2009
This concludes the Caterpillar history, but there is more about Antique Powerland starting with the next post…
Continue to Oregon Electric Railway Museum…
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