Hart-Parr

Hart-Parr 40-80

The Hart-Parr 40-80 was produced from 1908 to 1909 by Hart-Parr in Charles City, Iowa, USA. Only 10 units were built. It was introduced at the Minnesota State Fair in 1908. The tractor is powered by a large 54.2L 4-cylinder kerosene engine producing 110 hp. It features 2WD manual steering and weighs 34,000 lbs. The rear tires are large steel 98x28 size. The tractor was designed for heavy farm work with a claimed drawbar power of 40 hp and belt power of 80 hp.
Power110 hp
Founded1908 - 1909
Model40-80

Technical Specifications

Detailed specifications and technical data for Hart-Parr 40-80

Power
Engine power110 hp (82.0 kW)
Belt (claimed)80 hp (59.7 kW)
Drawbar (claimed)40 hp (29.8 kW)
Tires
Rear tire98x28 (steel)
Engine
Fuelkerosene
TypeHart-Parr 54.2L 4-cyl kerosene
Power110 hp (82.0 kW)
Coolingliquid-cooled
Cylinders4-cylinder
Bore/Stroke9.00x13.00 inches (229 x 330 mm)
Displacement3309.4 ci (54.2 L)
Dimensions
Weight34,000 lbs (15422 kg)
Mechanical
Drive2WD
Steeringmanual
Production
NotesThe Hart-Parr model 40-80 was introduced at the Minnesota State Fair in 1908.
Built inCharles City, Iowa, USA
Total built10
ManufacturerHart-Parr
Production years1908 - 1909