Caterpillar D5C Series III Crawler Tractor
The D5C III has a 3045 turbocharged, six-cylinder engine producing 90 flywheel horsepower (FWHP). It comes standard with three speeds forward, three reverse powershift-torque converter (PS-TC) planetary transmission and an attachment cab with air conditioning.
It is available in two configurations: the standard model, with a 9DL or 7YL serial number prefix, has a track gauge of 61 inches (155 cm); the Low Ground Pressure (LGP) configuration, with a 6ZL prefix, has a 68-inch (173-cm) track gauge.
In 1994, the blade cell structure was increased, beginning with 6ZL00312 and 9DL00835.
In 1995, Caterpillar modified the steering valve, beginning with 6ZL00354, 7YL00087, and 9DL1011.
Also in 1997, Cat modified the steering clutch brake lining material, beginning with 6ZL00874, 7YL00131, and 9DL02319, and introduced a blade anti-pitch top link with the 9DL unit, beginning with 9DL02236.
Caterpillar began manufacturing a number of new units in 1997. All came standard with hydrostatic drive and were available in standard or LGP configuration.
The new standard configuration tractors were given a 5HS, 7PS, 8ZS, or 9AS prefix.
The new LGP configuration tractors were given a 4WS or 6CS prefix.
The 5HS, 6CS, and 7PS units all came standard with new dozer blade top links. The 8ZS unit received its new top link, beginning with 8ZS00188.
In 1998, a turnbuckle blade anti-pitch link was introduced, beginning with 5HS00374, 7PS00527, 8ZS00285, and 9DL02378.
Also in 1998, Caterpillar modified the steering clutch control valve, beginning with 6ZL01032, 7YL00144, 8ZS00375, and 9DL02451.
Again in 1998, Cat added joystick hold control, beginning with 4WS00327, 5HS00541, 6CS00532, 7PS00797, and 9AS00402.
Based on data from the sales database of Ritchie Bros. Auctioneers, it is estimated that more than 8,100 Caterpillar D5C Series III crawler tractors have been produced.
| Total = 8,177|