Compare/Hart-Parr 18-28 vs Hart-Parr 28-50

Hart-Parr 18-28 vs Hart-Parr 28-50

Verdict: Hart-Parr 18-28 vs Hart-Parr 28-50

The Hart-Parr 18-28 and the Hart-Parr 28-50 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 18 hp. Hart-Parr 18-28 is the lighter machine (3,800 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 18-28 is the newer design (1930 vs 1927). In short: choose the Hart-Parr 28-50 for outright pulling power, or the Hart-Parr 18-28 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

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

18 hp

28 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Hart-Parr (a part of Oliver)Reference

Hart-ParrReference

Gear 1 used for pull test.Reference

Drawbar performanceReference

Variants

18-27

row-cropReference

—

18-28

standardReference

—

Engine

Fuel tank

53.0 LReference

—

Aux. fuel

3.8 LReference

—

Drawbar (claimed)

13.4 kWReference

20.9 kWReference

Belt (claimed)

20.9 kWReference

37.3 kWReference

Drawbar (tested)

17.6 kWReference

34.3 kWReference

Belt (tested)

22.6 kWReference

48.1 kWReference

Displacement

4.6 LReference

11.1 LReference

Bore/Stroke

105 x 133 mmReference

146 x 165 mmReference

Coolant capacity

30.3 LReference

—

Belt power (max)

22.6 kWReference

48.1 kWReference

Max power

17.6 kWReference

34.3 kWReference

Air cleaner

—

dryReference

Rated RPM

—

850Reference

Transmission

Type

gearReference

Gears

3 forward and 1 reverseReference

2 forward and 1 reverseReference

Clutch

—

mechanical dry discReference

Dimensions

Wheelbase

184 cmReference

—

Weight

3800 to 4165 poundsReference

3900 kgReference

Front tire

28x5Reference

28x7Reference

Rear tire

44x10Reference

51x14Reference

Ag front

28x5Reference

28x7 steelReference

Ag rear

44x10Reference

51x14 steelReference

Length

284 cmReference

—

Height (hood)

135 cmReference

—

Shipping weight

1723 kgReference

—

Operating weight

1889 kgReference

—

Capacities

Diameter

36 cmReference

—

Width

154 cmReference

—

RPM

726Reference

—

Speed

825.70 meters/minReference

—

Test results

Belt fuel use (max)

11.4 l/hourReference

—

Max pull

1470 kgReference

3332 kgReference

28-50 Serial Numbers

1927

—

70501Reference

1928

—

70742Reference

1929

—

70968Reference

1930

—

71402Reference

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.