Oliver

Oliver 90

The Oliver 90 is a standard-tread farm tractor produced from 1937 to 1952 by Oliver. It features a Waukesha-Oliver 7.3L 4-cylinder liquid-cooled kerosene engine, producing an estimated 48.9 hp. The tractor has a 4-speed gear transmission with 4 forward and 1 reverse gears. It weighs approximately 7,000 lbs (3175 kg) and uses two-wheel drive with manual steering and an open operator station. The rear PTO is optional. Variants include the 90 with an all-fuel engine and the 99 with a gasoline engine.
Power48 hp[B]
Founded1937 - 1952
Model90

Technical Specifications

Detailed specifications and technical data for Oliver 90

Power
Belt (claimed)44 hp (32.8 kW)
Drawbar (claimed)22 hp (16.4 kW)
Tires
Ag rear46x12 (steel); 12.75-28; 13.25-28; 13-30; 14-30; 15-30
Ag front7.50-18
Engine
Fuelkerosene
MakeWaukesha-Oliver
Coolingliquid-cooled
Cylinders4-cylinder
Rated RPM1125
Air cleaneroil bath
Bore/Stroke4.75x6.25 inches (121 x 159 mm)
Displacement443 ci (7.3 L)
Starter typehand-crank; electric (optional)
Variants
90all-fuel engine
99gasoline engine
Dimensions
Weight7,000 lbs (3175 kg)
Mechanical
DriveTwo-wheel drive
Steeringmanual
Operator stationOpen operator station
Production
TypeStandard-tread tractor
FactoriesCharles City, Iowa, USA; South Bend, Indiana, USA
ManufacturerOliver
Years produced1937 - 1952
Transmission
Typegear
Gears4 forward and 1 reverse
Power Take-off (PTO)
Rear PTOoptional