Hart-Parr 12-24 tractor specifications

1924 - 1930

1924 - 1930 Standard-tread tractor

Production

Production Manufacturer:Hart-Parr
Type:Standard-tread tractor
Factory:Charles City, Iowa, USA
Original price:$1,050 (1930 )

Hart-Parr 12-24 Power

Hart-Parr 12-24 Power Drawbar (claimed):12 hp
8.9 kW
Belt (claimed):24 hp
17.9 kW
Drawbar (tested):17.54 hp
13.1 kW
Belt (tested):26.97 hp
20.1 kW
power test details ...

1924 - 1930

Standard-tread tractor

Nebraska Tractor Test 107

Nebraska Tractor Test 107
309 kerosene 2WD October 14 - 23, 1924 Link: Nebraska Tractor Test 107 file
Belt power (max):	26.97 hp 20.1 kW
Drawbar performance
Max power:	17.54 hp 13.1 kW
Gear 2 used for power test.
Max pull:	3,054 lbs 1385 kg
Gear 1 used for pull test.

Hart-Parr 12-24 Engines

Hart-Parr 12-24 Engines Hart-Parr 5.1L 2-cyl gasoline Hart-Parr 5.5L 2-cyl gasoline Engine details ...

1924 - 1930

Standard-tread tractor

Engines overview

Engines overview
Hart-Parr 5.1L 2-cyl gasoline
Hart-Parr 5.5L 2-cyl gasoline

Engine Detail

Engine Detail
Hart-Parr
gasoline
2-cylinder
liquid-cooled
Displacement:	308.9 ci 5.1 L
Bore/Stroke:	5.50x6.50 inches 140 x 165 mm
Rated RPM:	850

Engine Detail

Engine Detail
Hart-Parr
gasoline
2-cylinder
liquid-cooled
Displacement:	337.6 ci 5.5 L
Bore/Stroke:	5.75x6.50 inches 146 x 165 mm
Rated RPM:	850

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Cab:Open operator station.
Transmissions:2-speed gear
3-speed gear
Transmission details ...

1924 - 1930

Standard-tread tractor

Transmissions overview

Transmissions overview
2-speed gear
3-speed gear

Transmission

Transmission
Type:	gear
Gears:	2 forward and 1 reverse

Speeds

Speeds

Transmission

Transmission
Type:	gear
Gears:	3 forward and 1 reverse

Dimensions & Tires

Dimensions & Tires Weight:4440 lbs
2013 kg
Front tire:28x5
Rear tire:46x10
Full dimensions and tires ...

1924 - 1930

Standard-tread tractor

Hart-Parr 12-24 Tires

Hart-Parr 12-24 Tires
Ag front:	28x5 (steel)
Ag rear:	46x10 (steel)

Dimensions

Dimensions
Length:	116 inches 294 cm
Width:	66 inches 167 cm
Height:	56 inches 142 cm
Weight:	4440 lbs 2013 kg

12-24 Serial Numbers

12-24 Serial Numbers 1924:36001 (12-24 E)
1925:36075 (12-24 E)
1926:36581 (12-24E)
1926:37101 (12-24 G)
1927:37190 (12-24 G)
1927:37901 (12-24 H)
1928:38119 (12-24 H)
1929:39687 (12-24 H)
1930:42279 (12-24 H)

how to read serial numbers...