The Caterpillar 12F motor grader was introduced in 1965 as the replacement for the Caterpillar 12E. It was manufactured in the USA only.

[edit] Features

The 12F has a D333 six-cylinder engine producing 115 flywheel horsepower (FWHP). It has a direct drive transmission with electric start. It comes standard with a planetary blade lift, hydraulically actuated mechanical controls, and self-adjusting brakes.

The 12F was given a 73G serial number prefix.

[edit] Modifications

Production of 12F ended in 1967; it was replaced by a new American unit, with a 13K prefix. The 13K unit has a D333 engine producing 125 FWHP. It has power boosted steering and brakes, an oil clutch, and a six speeds, four reverse transmission.

In 1969 Caterpillar introduced another new unit, with an 89H prefix.

In 1970 Cat modified the multiple disc clutch control, beginning with 13K03380 and 89H00901.

In 1971 a rollover protection system was added, beginning with 13K04362 and 89H01109.

Production of the Cat 12F ended in 1973; it was replaced by the Caterpillar 12G.

Based on data from the sales database of Ritchie Bros. Auctioneers, it is estimated that more than 12,800 Caterpillar 12E motor graders have been produced.

Highest Serial #

USA
13K	06778
73G	04236
89H	01840
Total = 12,854