Compare/Hart-Parr 28-50 vs Hart-Parr 40

Hart-Parr 28-50 vs Hart-Parr 40

Verdict: Hart-Parr 28-50 vs Hart-Parr 40

The Hart-Parr 28-50 and the Hart-Parr 40 are both tractors — here is how they stack up on the figures that matter. Hart-Parr 28-50 leads on rated power with 28 hp against 22 hp. Hart-Parr 40 is the lighter machine (3,402 kg vs 3,900 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Hart-Parr 28-50 is the newer design (1927 vs 1923). In short: choose the Hart-Parr 28-50 for outright pulling power, or the Hart-Parr 40 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Hart-Parr

Fit score

Best match

Clear

Hart-Parr

Fit score

Best match

Clear

Rated power

28 hp

22 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Hart-ParrReference

Drawbar performanceReference

Engine

Drawbar (claimed)

20.9 kWReference

16.4 kWReference

Belt (claimed)

37.3 kWReference

29.8 kWReference

Drawbar (tested)

34.3 kWReference

21.1 kWReference

Belt (tested)

48.1 kWReference

34.6 kWReference

Displacement

11.1 LReference

10.1 LReference

Bore/Stroke

146 x 165 mmReference

140 x 165 mmReference

Air cleaner

dryReference

—

Rated RPM

850Reference

800Reference

Belt power (max)

48.1 kWReference

34.6 kWReference

Max power

34.3 kWReference

21.1 kWReference

Transmission

Type

gearReference

Gears

2 forward and 1 reverseReference

Clutch

mechanical dry discReference

mechanical contracting bandReference

Dimensions

Weight

3900 kgReference

3402 kgReference

Front tire

28x7Reference

28x5Reference

Rear tire

51x14Reference

52x13Reference

Ag front

28x7 steelReference

28x5 (steel)Reference

Ag rear

51x14 steelReference

52x13 (steel)Reference

Length

—

355 cmReference

Height

—

170 cmReference

28-50 Serial Numbers

1927

70501Reference

70491Reference

1928

70742Reference

—

1929

70968Reference

—

1930

71402Reference

—

Test results

Max pull

3332 kgReference

2190 kgReference

Belt fuel use (max)

—

23.8 l/hourReference

40 Serial Numbers

1923

—

70001Reference

1924

—

70020Reference

1925

—

70095Reference

1926

—

70251Reference

Final

—

70500Reference

Capacities

Diameter

—

35 cmReference

Width

—

243 cmReference

RPM

—

800Reference

Speed

—

838.20 meters/minReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.