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75th Anniversary of the Model 12 Motor Grader

04/17/2013 12:00:00

This machine was originally introduced as the “Caterpillar Diesel No. 12 Auto Patrol” in the summer of 1938, but was soon renamed as a “Motor Grader” just one year later.

Caterpillar’s archived product information shows that the original Diesel No. 12 Auto Patrol was 25 feet long and seven feet, eight inches wide.  It was also nine feet, ten inches tall when outfitted with the optional cab.  Weighing in at 20,360 pounds, it featured a 12-foot blade, had six forward speeds and two reverse speeds.  The July 25, 1938 Price List shows that customers could purchase the Diesel No. 12 Auto Patrol for $5,500.

This machine, as well as other auto patrol models, was primarily used in the building of roads and snow removal.  Only four other machines produced by Caterpillar have ever reached a 75th anniversary – the D6, D7 and D8 Tractors in 2010 and the D4 Tractor in 2011.  The No. 12 Motor Grader is the first product that is not a tractor to reach this milestone.

Check out our selection of new Cat Motor Graders here...