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Hart-Parr 30 vs Rock Island G2 15-25
Verdict: Hart-Parr 30 vs Rock Island G2 15-25
The Hart-Parr 30 and the Rock Island G2 15-25 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 15 hp. Rock Island G2 15-25 is the lighter machine (1,905 kg vs 2,472 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Rock Island G2 15-25 is the newer design (1929 vs 1919). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Hart-Parr
62
Fit score
Best match
Clear
Rock Island
62
Fit score
Best match
Clear
Rated power
15 hp
15 hp
Confidence
40%
40%
Guide price
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Overview
Manufacturer
Hart-ParrReference
Rock IslandReference
Drawbar performanceReference
Gasoline 2-speed 2WDMay 4 - 8, 1929Link: Nebraska Tractor Test 158 fileReference
Final drives
bull gearReference
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Steering
—
manualReference
Engine
Drawbar (claimed)
11.2 kWReference
11.2 kWReference
Belt (claimed)
22.4 kWReference
18.6 kWReference
Plows
3Reference
—
Drawbar (tested)
14.7 kWReference
19.0 kWReference
Belt (tested)
23.4 kWReference
26.6 kWReference
Displacement
7.6 LReference
5.3 LReference
Bore/Stroke
165 x 178 mmReference
108 x 146 mmReference
Rated RPM
750Reference
1100Reference
Belt power (max)
23.4 kWReference
26.6 kWReference
Max power
14.7 kWReference
19.0 kWReference
Fuel tank
—
79.5 LReference
Aux. fuel
—
13.2 LReference
Transmission
Type
gearReference
unsynchronized gearReference
Gears
2 forward and 1 reverseReference
2 forward and 1 reverseReference
Dimensions
Weight
2472 kgReference
1905 kgReference
Front tire
28x5Reference
—
Rear tire
52x10Reference
—
Ag front
28x5 (steel)Reference
—
Ag rear
52x10 (steel)Reference
—
Length
358 cmReference
—
Width
193 cmReference
—
Height
154 cmReference
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Operating weight
2472 kgReference
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30 Serial Numbers
1919
9383Reference
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1920
13018Reference
—
1921
18475Reference
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1922
21000 (30C)Reference
—
1923
21393 (30C)Reference
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1924
21865 (30C)Reference
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Test results
Belt fuel use (max)
17.8 l/hourReference
14.8 l/hourReference
Max pull
1584 kgReference
1609 kgReference
Links
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.