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Tractor · 1924Unverified

Hart-Parr 12-24

Name: Hart-Parr 12-24
Brand: Hart-Parr

Hart-Parr 12-24 — Standard-tread tractor · 12 hp. Reference specifications; pending source verification.

The Hart-Parr 12-24 is a tractor with a power rating of 12 hp, making it a compact option in its class. Manufactured between 1924 and 1930, this model features a 2-cylinder petrol liquid-cooled engine, paired with a 2-speed gearbox and two-wheel drive. Its listed weight is 2013 kg, making it suitable for tasks on around 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

12 hp

Max power

13.1 kW

Weight

2013 kg

Catalogue coverage

Variants represented

Richest spec table

52 rows

Recorded power

12 hp

Recorded weight

2013 kg

Transmissions

2-speed gear

Production years

1924-1930

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerHart-ParrReference

Standard-tread tractorReference

Built in Charles City, Iowa, USAReference

Original price was $1,050 in 1930Reference

Two-wheel driveReference

Manual steeringReference

Open operator station.Reference

Engine

Hart-Parr 5.1L 2-cyl gasolineReference

Hart-Parr 5.5L 2-cyl gasolineReference

Drawbar (claimed)8.9 kWReference

Belt (claimed)17.9 kWReference

Drawbar (tested)13.1 kWReference

Belt (tested)20.1 kWReference

Hart-ParrReference

gasolineReference

2-cylinderReference

liquid-cooledReference

Displacement5.1 LReference

Bore/Stroke140 x 165 mmReference

Rated RPM850Reference

Displacement5.5 LReference

Bore/Stroke146 x 165 mmReference

Belt power (max)20.1 kWReference

Max power13.1 kWReference

Transmission

2-speed gearReference

3-speed gearReference

TypegearReference

Gears2 forward and 1 reverseReference

Gears3 forward and 1 reverseReference

Dimensions

Weight2013 kgReference

Front tire28x5Reference

Rear tire46x10Reference

Ag front28x5 (steel)Reference

Ag rear46x10 (steel)Reference

Length294 cmReference

Width167 cmReference

Height142 cmReference

12-24 Serial Numbers

192436001 (12-24 E)Reference

192536075 (12-24 E)Reference

192636581 (12-24E)Reference

192637101 (12-24 G)Reference

192737190 (12-24 G)Reference

192737901 (12-24 H)Reference

192838119 (12-24 H)Reference

192939687 (12-24 H)Reference

193042279 (12-24 H)Reference

FAQ: How to read a serial number table.Reference

Test results

309 kerosene 2WDOctober 14 - 23, 1924Link: Nebraska Tractor Test 107 fileReference

Drawbar performanceReference

Gear 2 used for power test.Reference

Max pull1385 kgReference

Gear 1 used for pull test.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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