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Farmall F-30 vs Gray Tractor 20-35 A
Verdict: Farmall F-30 vs Gray Tractor 20-35 A
The Farmall F-30 and the Gray Tractor 20-35 A are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 20 hp. Farmall F-30 is the lighter machine (2,404 kg vs 3,628 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall F-30 is the newer design (1931 vs 1914). 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
Farmall
62
Fit score
Best match
Clear
Gray Tractor
62
Fit score
Best match
Clear
Rated power
20 hp
20 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Farmall (a part of International Harvester)Reference
Gray TractorReference
Gear 1 used for pull test.Reference
liquid-cooled inlineReference
Total built
28,902Reference
—
Steering
manualReference
—
Drive
—
3x1 drum driveReference
Engine
Fuel tank
79.5 LReference
—
Aux. fuel
3.8 LReference
—
Drawbar (claimed)
14.9 kWReference
14.9 kWReference
Belt (claimed)
22.4 kWReference
26.1 kWReference
Plows
3Reference
6Reference
Drawbar (tested)
18.5 kWReference
—
Belt (tested)
24.5 kWReference
—
Displacement
4.6 LReference
7.8 LReference
Bore/Stroke
108 x 127 mmReference
121 x 171 mmReference
Fuel system
Zenith K5 carburetorReference
—
Air cleaner
oil bathReference
—
Rated RPM
1150Reference
—
Starter type
hand-crankReference
—
Coolant capacity
34.1 LReference
—
Belt power (max)
24.5 kWReference
—
Max power
18.5 kWReference
—
Transmission
Type
unsynchronized gearReference
gearReference
Gears
4 forward and 1 reverseReference
2 forward and 1 reverseReference
Clutch
dry discReference
—
PTO & Hydraulics
Rear PTO Type
540 (1.375)Reference
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Dimensions
Weight
2404 kgReference
3628 kgReference
Front tire
25x4Reference
44x10Reference
Rear tire
42x12Reference
60x60Reference
Ag front
25x4 (steel)Reference
44x10 steelReference
Ag rear
42x12 (steel)Reference
60x60 steelReference
Length
373 cmReference
515 cmReference
Height
205 cmReference
182 cmReference
F-30 Serial Number Location
F-30 Serial Numbers
1931
FB501Reference
—
1932
FB1184Reference
—
1933
FB4305Reference
—
1934
FB5526Reference
—
1935
FB7032Reference
—
1936
FB10407Reference
—
1937
FB18684Reference
—
1938
FB27186Reference
—
1939
FB29007Reference
—
Final
FB30026Reference
—
Capacities
Diameter
37 cmReference
30 cmReference
Width
228 cmReference
243 cmReference
RPM
682Reference
—
Speed
796.14 meters/minReference
—
Test results
Belt fuel use (max)
12.9 l/hourReference
—
Max pull
1885 kgReference
—
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.


