1970-1974

Oliver 1955 tractors, like most other Oliver models, used a six-cylinder diesel engine. Four styles of Row-Crop tractors were built, plus Wheatland, Ricefield, and four-wheel drive models. Closed center hydraulics were another feature, along with the choice of Category II or Category III three-point hitch systems. Hydraulic triple disc brakes were featured, as was a hydralically operated pto shaft. With the Over/Under Hydraul-Shift, the 1955 offered eighteen forward speeds, and with the Oliver Hydra-Power drive, twelve different speeds were available. Standard equipment included power steering. Nebraska Test No. 1055 was run on the Oliver 1955 tractor in October 1970. This test revealed a maximum output of 108 pto horsepower. The 310 cubic inch, six-cylinder engine used a 3 7/8 x 4 3/8 inch bore and stroke. Rated speed was 2,400 rpm. Although the four-wheel-drive option was built with a fixed tread, the wheels could be switched for a tread width of 66 or 70 3/4 inches; with the use of spacers this could be extended to 80 inches. A factory option was the no-spin differential which operated automatically to reduce front wheel spin-out.

Engine: Oliver-Waukesha

Cylinders: 6

Bore & Stroke: 3.875x4.375

RPM: 2400

CID: 310

Fuel: Diesel

Main Fuel Tank Cap:

Aux Fuel Tank Cap:

Carburetor:

Cooling Capacity:

Drawbar HP: 90.32

PTO HP: 108.16

Weight: 11,250 lbs

Length: inches

Width: inches

Height: inches

Number of Gears: 6/2-18/6

Options:

1970: 222304-223439

1971: 226858-230456

1972: 232958-236326

1973: 239032-244558

1974: 247871-253050