Hart-Parr 30

The Hart-Parr 30 is a tractor produced by Hart Parr. It is equipped with a 464.6 ci 7.6 L engine. The rated power output is 31.37 hp 23.4 kW. Transmission: 2 forward and 1 reverse. Operating weight: 5450 lbs 2472 kg.

Overview

	1919 - 1924 Standard-tread tractor
1919 - 1924
Standard-tread tractor

Production
Manufacturer	Hart-Parr
Standard-tread tractor
Built in Charles City, Iowa, USA
Original price was $1,395 in 1924

Hart-Parr 30 Engine
Hart-Parr 7.6L 2-cyl gasoline
Engine details ...

Hart-Parr 30 Transmission
2-speed gear
Transmission details ...

Hart-Parr 30 Power
Drawbar (claimed)	15 hp 11.2 kW
Belt (claimed)	30 hp 22.4 kW
Plows	3
Drawbar (tested)	19.65 hp 14.7 kW
Belt (tested)	31.37 hp 23.4 kW
Performance test details ...

Mechanical
Two-wheel drive
Final drives	bull gear
Manual steering
Open operator station.

Dimensions & Tires
Weight	5450 lbs 2472 kg
Front tire	28x5
Rear tire	52x10
Full dimensions and tires ...

Engine

Engine Detail — 464.6 ci / 7.6 L Gasoline

Manufacturer	Hart-Parr
Fuel Type	Gasoline
Configuration	2-cylinder, liquid-cooled
Displacement	464.6 ci 7.6 L
Bore/Stroke	6.50x7.00 inches 165 x 178 mm
Rated RPM	750

Transmission

Transmission — 2 forward and 1 reverse gear

Type	gear
Gears	2 forward and 1 reverse

Dimensions

Hart-Parr 30 Tires
Ag front	28x5 (steel)
Ag rear	52x10 (steel)

Dimensions
Length	141 inches 358 cm
Width	76 inches 193 cm
Height	61 inches 154 cm
Operating weight	5450 lbs 2472 kg

Tests

Nebraska Tractor Test 26
Kerosene 2-speed 2WD June 17 - 22, 1920 Link: Nebraska Tractor Test 26 file
Belt power (max)	31.37 hp 23.4 kW
Belt fuel use (max)	4.7 gal/hour 17.8 l/hour
Drawbar performance
Max power	19.65 hp 14.7 kW
Max pull	3494 lbs 1584 kg

Photos

Hart-Parr 30