Oliver 660

The Oliver 660 is a versatile tractor built by Oliver, a well-known farm equipment maker. It has a gasoline engine made by Waukesha-Oliver with 4 cylinders. The engine is naturally aspirated, which means it doesn't use a turbocharger. It has a displacement of 155 cubic inches, which is about average for tractors of its class.

This tractor uses an unsynchronized gear transmission with 6 forward gears and 2 reverse gears. It's a good size for many farm tasks, measuring 134.4 inches long, 80.9 inches wide, and 87.4 inches tall. The Oliver 660 weighs 3,128 pounds, making it sturdy enough for tough jobs but not too heavy. It has a 12-volt electrical system and starts with an electric starter, which makes it easy to use. The cooling system holds 14 quarts of coolant, helping the engine stay at the right temperature during work.