The Caterpillar D7C is a powerful tractor built for tough jobs. It has a manual clutch steering system and a gear transmission with 5 forward gears and 4 reverse gears. This gives the operator good control over the tractor's movement.
Under the hood, the D7C has a Caterpillar D339 engine. This engine is liquid-cooled and runs on diesel fuel. It has 4 cylinders and can produce 128 horsepower at 1200 RPM. The engine is naturally aspirated, which means it doesn't use a turbocharger. It has a large displacement of 831 cubic inches, which helps it generate lots of power. The tractor uses a gasoline pony engine to start up the main diesel engine.
The D7C is a big machine, measuring 167.6 inches long, 97 inches wide, and 81.25 inches tall. It's also very heavy, weighing 26,930 pounds. This size and weight help it handle tough tasks on the farm or construction site. The tractor has a large coolant capacity of 68 quarts, which helps keep the engine running smoothly in hot conditions.
