Search
Hart-Parr 28-44 vs Hart-Parr 40
Verdict: Hart-Parr 28-44 vs Hart-Parr 40
The Hart-Parr 28-44 and the Hart-Parr 40 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 22 hp. Hart-Parr 40 is the lighter machine (3,402 kg vs 5,565 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Hart-Parr 28-44 is the newer design (1930 vs 1923). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
Tune the fit score
Tell us about your operation
Fit & specs
Hart-Parr
62
Fit score
Best match
Clear
Hart-Parr
62
Fit score
Best match
Clear
Rated power
22 hp
22 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Hart-Parr (a part of Oliver)Reference
Hart-ParrReference
Gear 1 used for pull test.Reference
Drawbar performanceReference
Engine
Fuel tank
128.7 LReference
—
Drawbar (claimed)
16.4 kWReference
16.4 kWReference
Belt (claimed)
32.8 kWReference
29.8 kWReference
Plows
3-5Reference
—
Drawbar (tested)
25.5 kWReference
21.1 kWReference
Belt (tested)
36.6 kWReference
34.6 kWReference
Displacement
7.3 LReference
10.1 LReference
Bore/Stroke
121 x 159 mmReference
140 x 165 mmReference
Rated RPM
1125Reference
800Reference
Coolant capacity
39.7 LReference
—
Belt power (max)
36.6 kWReference
34.6 kWReference
Max power
25.5 kWReference
21.1 kWReference
Transmission
Type
gearReference
gearReference
Gears
3 forward and 1 reverseReference
2 forward and 1 reverseReference
Clutch
—
mechanical contracting bandReference
PTO & Hydraulics
Rear PTO Type
540Reference
—
Dimensions
Wheelbase
203 cmReference
—
Weight
5565 to 6415 poundsReference
3402 kgReference
Front tire
29x6Reference
28x5Reference
Rear tire
46x12 (steel)Reference
52x13Reference
Ag front
29x6 (steel)Reference
28x5 (steel)Reference
Ag rear
46x12 (steel)Reference
52x13 (steel)Reference
Length
319 cmReference
355 cmReference
Height (hood)
151 cmReference
—
Shipping weight
2524 kgReference
—
Operating weight
2909 kgReference
—
Height
—
170 cmReference
28-44 Serial Numbers
1930
500001Reference
—
1931
503599Reference
—
1932
506185Reference
—
1933
506212Reference
—
1934
506255Reference
—
1935
506401Reference
—
1936
507176Reference
—
1937
508016Reference
—
Final
508917Reference
70500Reference
Capacities
Diameter
42 cmReference
35 cmReference
Width
165 cmReference
243 cmReference
RPM
596Reference
800Reference
Speed
792.48 meters/minReference
838.20 meters/minReference
Test results
Belt fuel use (max)
18.5 l/hourReference
23.8 l/hourReference
Max pull
2320 kgReference
2190 kgReference
40 Serial Numbers
1923
—
70001Reference
1924
—
70020Reference
1925
—
70095Reference
1926
—
70251Reference
1927
—
70491Reference
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.