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Allis Chalmers 6-12 vs Allis Chalmers G

Verdict: Allis Chalmers 6-12 vs Allis Chalmers G

The Allis Chalmers 6-12 and the Allis Chalmers G are both tractors — here is how they stack up on the figures that matter. Allis Chalmers G leads on rated power with 10 hp against 6 hp. Allis Chalmers 6-12 is the lighter machine (1,134 kg vs 1,285 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 6-12 holds more fuel (32.2 L vs 18.9 L) for longer stints between fills. Allis Chalmers G is the newer design (1948 vs 1919). In short: choose the Allis Chalmers G for outright pulling power, or the Allis Chalmers 6-12 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
Allis Chalmers 6-12 Tractor
Allis Chalmers
62
Fit score
Best match
Clear
Allis Chalmers G Tractor
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
6 hp
10 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
Gear 1 used for pull test.Reference
Gear 1 used for pull test.Reference
Total built
1,470Reference
29,976Reference
Engine
Fuel tank
32.2 LReference
18.9 LReference
Drawbar (claimed)
4.5 kWReference
7.5 kWReference
Belt (claimed)
8.9 kWReference
Drawbar (tested)
4.7 kWReference
6.7 kWReference
Belt (tested)
9.2 kWReference
7.7 kWReference
Displacement
2.3 LReference
1.0 LReference
Bore/Stroke
79 x 114 mmReference
60 x 89 mmReference
Rated RPM
1200Reference
1800Reference
Coolant capacity
13.2 LReference
6.2 LReference
Belt power (max)
9.2 kWReference
7.7 kWReference
Max power
4.7 kWReference
6.7 kWReference
Air cleaner
oil bathReference
Compression
5.75:1Reference
Firing order
1-3-4-2Reference
Starter volts
6Reference
Sparkplug gap
0.635 mmReference
Point gap
0.508 mmReference
Intake valve clearance
0.254 mmReference
Exhaust valve clearance
0.254 mmReference
Oil capacity
7.6 LReference
Transmission
Type
gearReference
creeperReference
Gears
1 forward and reverseReference
4 forward and 1 reverseReference
Clutch
165.1mm dry discReference
Transmission
creeperReference
Dimensions
Weight
1134 kgReference
1285 to 1400 poundsReference
Front tire
48x6Reference
4.00-12Reference
Rear tire
28x6Reference
6-30Reference
Ag front
48x6 steelReference
4.00-12Reference
Ag rear
28x6 steelReference
6-30Reference
Length
396 cmReference
294 cmReference
Width
137 cmReference
10 cmReference
Height
182 cmReference
Wheelbase
173 cmReference
Height (steering wheel)
141 cmReference
Clearance (rear axle)
44 cmReference
Clearance (drawbar)
33 cmReference
Front tread
91 to 162 cmReference
Rear tread
91 to 162 cmReference
Shipping
582 kgReference
Operating
635 kgReference
Ballasted
793 kgReference
Test results
Belt fuel use (max)
6.8 l/hourReference
4.5 l/hourReference
Fuel use
6.1 l/hourReference
Max pull
518 kgReference
518 kgReference
G Serial Numbers
1948
6Reference
1949
10961Reference
1950
23180Reference
1951
24006Reference
1952
25269Reference
1953
26497Reference
1954
28036Reference
1955
29036Reference
Location:
Top of transmission case, rear of shift leverReference
Final
29976Reference
Links
Capacities
Diameter
15 cmReference
RPM
1950Reference
Speed
933.60 meters/minReference
Electrical
Ground
positiveReference
Charging system
generatorReference
Battery volts
6Reference

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.

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