Oliver 1955

The Oliver 1955, part of the 55 Series, was a versatile and powerful row-crop tractor designed for a variety of agricultural tasks. With its turbocharged diesel engine and advanced transmission options, it represented a significant technological advancement during its production years. Its robust construction, power capabilities, and adaptability made it a popular choice for farmers in the 1970s, and it remains a collector’s item today due to its historical significance in the world of agriculture.

Oliver 1955 Specs
Years of Production1970 – 1974
Series55 Series
TypeRow-Crop tractor
Production
ManufacturerOliver (a part of White)
TypeRow-Crop tractor
Original Price (1974)$14,250
Oliver 1955 Power
PTO (claimed)108 hp / 80.5 kW
Drawbar (tested)90.32 hp / 67.4 kW
PTO (tested)108.16 hp / 80.7 kW
Engine Specs
EngineOliver-Waukesha
TypeTurbocharged diesel
Type6-cylinder, liquid-cooled
Displacement310 cubic inches (5.1 L)
Bore/Stroke3.875×4.375 inches (98 x 111 mm)
Air CleanerDry
Rated RPM2400
Starter Volts12
Coolant Capacity20 quarts (18.9 L)
Transmissions variants
var6-speed gear
var18-speed partial power shift
Transmission
TypeGear
Gears6 forward and 2 reverse
Clutch330mm cerametallic disc
Transmission
TransmissionHydraul-Shift
TypePartial power shift
Gears18 forward and 6 reverse
Clutch330mm cerametallic disc
NoteThe Hydraul-Shift offers power shift between overdrive, underdrive, and direct-drive for each gear.
Mechanical
Chassis4×2 2WD and 4×4 MFWD 4WD
SteeringPower
BrakesDifferential hydraulic dry disc
CabOpen operator station with optional two-post ROPS and cab.
Hydraulics
TypeClosed center
Pump Flow20 gpm (75.7 lpm)
Tractor Hitch
Rear TypeII/III
Rear Lift6000 lbs (2721 kg)
Power Take-off (PTO)
Rear PTOIndependent
Rear RPM1000
1955 Serial Numbers
1970222-304
1971226-858
1972232-958
1973239-032
1974247-871
Final253-050
Electrical
GroundNegative
Battery Volts12
Oliver 1955 Tires
Ag Front11L-15
Ag Rear20.8-38
Dimensions
2WD Wheelbase103 inches (261 cm)
4WD Wheelbase86.25 inches (219 cm)
2WD Length159.5 inches (405 cm)
4WD Length152.375 inches (387 cm)
Width80.625 inches (204 cm)
Height (steering wheel)85.5 inches (217 cm)
Operating Weight11,250 lbs (5103 kg)
Ballasted Weight16,220 lbs (7357 kg)
2WD Ground Clearance25.5 inches (64 cm)
4WD Ground Clearance13.5 inches (34 cm)
2WD Front Tread61.5 to 87.5 inches (156 to 222 cm)
4WD Front Tread60/70.75/80 inches (152/179/203 cm)
Rear Tread57 to 119.5 inches (144 to 303 cm)
Nebraska Tractor Test 1055
EngineDiesel 18-speed 2WD
PTO PerformancePower at Rated Engine Speed 108.16 hp (80.7 kW)
Fuel Use6.9 gal/hour (26.1 l/hour)
Drawbar PerformanceMax Power 90.32 hp (67.4 kW)
Fuel Use7.0 gal/hour (26.5 l/hour)
Max Pull12,639 lbs (5733 kg)
NoteGear 2-under used for pull test.
Historical Model in Today’s Context:

The Oliver 1955, produced from 1970 to 1974, is a historical tractor that offers a fascinating look into the past while providing insights into the technology of its time. In today’s modern world of agriculture, this classic tractor stands as a testament to the ingenuity and innovation of its era. While it may not match the cutting-edge features of contemporary tractors, it was a powerful workhorse during its heyday. Today, enthusiasts and collectors appreciate the nostalgia and historical significance of the Oliver 1955. It serves as a reminder of a time when farming required sturdy and dependable machinery, and its enduring charm has not faded with the years.

Collectors’ Model:

For tractor enthusiasts and collectors, the Oliver 1955 is a prized possession. Its historical importance and role in shaping the agricultural landscape of the 1970s make it a sought-after collector’s item. Restoring and maintaining an Oliver 1955 is a labor of love, and those who own one take great pride in preserving this piece of farming history. Its turbocharged diesel engine, advanced transmission, and hydraulic features were cutting-edge during its production years, and collectors appreciate these aspects as a testament to the technological advancements of the time.

Overview of Specifications and Aspects:

The Oliver 1955 was equipped with a turbocharged diesel engine boasting 108 horsepower, a significant power output for its era. Its 6-speed gear transmission and optional 18-speed partial power shift offered versatility and efficiency in various farming tasks. The tractor’s power take-off (PTO) performance was impressive, making it suitable for a wide range of implements. Hydraulic features and the ability to adjust front and rear tread widths showcased the tractor’s adaptability to different farming conditions.

With its 2WD and 4WD options, the Oliver 1955 catered to the needs of farmers, and its power steering and differential hydraulic dry disc brakes enhanced maneuverability and safety. The inclusion of an open operator station with optional safety features such as a two-post ROPS and cab highlighted the tractor’s focus on operator comfort and safety.

The Oliver 1955’s dimensions, ground clearance, and adjustable front and rear tread widths made it suitable for various farm applications. Its performance, as evidenced by Nebraska Tractor Test results, underscored its capabilities in terms of power, fuel efficiency, and pulling strength.

In conclusion, the Oliver 1955 is a historical model that represents an era when tractors were evolving rapidly in terms of power and technology. Today, it remains a cherished collector’s item, appreciated for its role in advancing farming practices and its enduring appeal as a piece of agricultural history.

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