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Caterpillar D8N Crawler Tractor

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Caterpillar Crawler Tractors
Equipment Specifications - RitchieSpecs
Free specifications for all classes of equipment
Caterpillar D8N with SU dozer blade
Caterpillar D8N undercarriage
Caterpillar D8N controls with differential steer
The Caterpillar D8N crawler tractor was introduced in 1987 in the USA. Production began in Brazil in 1993.

[edit] Features

The D8N had a 3406 direct injection turbo, six-cylinder engine producing 285 flywheel horsepower (FWHP). It came standard with an 82-inch (208-cm) track gauge, elevated sprocket, multiple disc oil-cooled brakes, sealed and lubricated tracks (SALT), variable displacement load sensing hydraulics, three speeds forward, three reverse powershift transmission, and differential steering.

[edit] Configurations

D8N units were initially manufactured in the USA only, with a 9TC and 1XJ serial number prefix.

[edit] Modifications

Production of the 9TC and 1XJ ended in 1992.

In 1992 and 1993, Caterpillar introduced new D8N equipped with a 3406C engine producing 285 FWHP. It came standard with separate steering and implement pumps, engine aftercooler, metric bulldozer fasteners, new multi-row module radiator and operator station, three-valve implement hydraulic system, and non-suspended undercarriage. With the new D8N, Caterpillar relocated the filters to the right side of the tractor, raised brake torque capacity by 20 percent, increased the lift cylinder rod diameter, and amplified the strength of the track adjuster piston.

The new D8N was manufactured in the USA, with a 5TJ prefix, and in Brazil, with a 7TK prefix.

Caterpillar offered a certified rebuild program for the D8N, beginning with 1XJ75000, 9TC75000, 5TJ75000, and 7TK75000.

Production of the D8N ended in 1996.

The Caterpillar D8N was replaced by the Caterpillar D8R.

Based on data from the sales database of Ritchie Bros. Auctioneers, it is estimated that more than 10,500 Caterpillar D8N crawler tractors have been produced.

Highest Serial #
Brazil
7TK 00499
USA
1XJ 00187
5TJ 03141
9TC 06709
Total = 10,536