Caterpillar

By Katie Weiler | September 28, 2010

CaterpillarCat says the D7R Series II track-type tractor features a new Cat 3176C engine that provides faster response, improved fuel efficiency and lower exhaust emissions. The new engine, with 240 net horsepower, has 4 percent more power than the engine in the predecessor model, the D7R. The Series II model has an operating weight of 54,582 pounds with its standard undercarriage, and blades range from 5.08 to 10.91 cubic yards.

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