1957-1965

Oliver OC-4 crawlers made their debut in 1956. This photograph was taken in August of that year; it shows the early OC-4 with a radiator grille and hood styling similar to that used on the Oliver farm tractors of the period. The engine was a three-cylinder style from Hercules; its 3 1/2 x 4 1/2 inch bore and stroke gave a displacement of 130 cubic inches. Rated speed was 1,700 rpm. Weighing 5,255 pounds, the OC-4 delivered nearly 18 drawbar horsepower in Nebraska Test No. 656. This test was run in June 1958, shortly after the OC-4 had been unveiled.

Engine: Hercules

Cylinders: 3

Bore & Stroke: 3.50x4.50

RPM: 1700

CID: 130

Fuel: Diesel

Main Fuel Tank Cap:

Aux Fuel Tank Cap:

Carburetor:

Cooling Capacity:

Drawbar HP: 18.55

Belt PTO HP: 23.26

Weight: 4,750 lbs

Length: 111 inches

Width: 60 inches

Height: inches

Number of Gears: 4/1

Options:

1956: 1TG002

1957: 1TG004

1958: 3TG802

1958: 4TG077

1959: 4TG076

1960: 4TG096