Model Sixty Track-Type Tractor
1925
Developed by C.L. Best in 1919 as the Best 60 Tracklayer, this iconic machine was renamed the Caterpillar Model Sixty Track-Type Tractor after the 1925 merger. Its design is still a core element of Caterpillar’s dozers today, showing the longevity and endurance of Caterpillar’s innovations.
Despite the huge success of the Model Sixty, C.L. Best remained humble. When asked about its legacy, Best replied, “Don’t ask me, I am no braggart.”
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The Model Sixty was used to build many iconic landmarks, including the Hoover Dam and the original Hollywood sign. It has worked on every continent except Antarctica.
The Model Sixty at a Glance:
- 650 rpm engine
- Four-cylinder overhead valve Best gas engine
- 35 drawbar-horsepower (26 kW)
- 60 belt-horsepower (45 kW)