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Allis Chalmers 945 vs Allis Chalmers HD-21 Series B
Verdict: Allis Chalmers 945 vs Allis Chalmers HD-21 Series B
The Allis Chalmers 945 and the Allis Chalmers HD-21 Series B are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers 945 leads on rated power with 315 hp against 273 hp. Allis Chalmers 945 is the newer design (1974 vs 1969). In short: choose the Allis Chalmers 945 for outright pulling power, or the Allis Chalmers HD-21 Series B 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
62
Fit score
Best match
Clear
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
315 hp
273 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
liquid-cooled inlineReference
liquid-cooledReference
Total built
147Reference
—
Final drives
planetaryReference
—
Drive
—
crawlerReference
Engine
Engine (net)
234.9 kWReference
—
Displacement
13.8 LReference
13.8 LReference
Bore/Stroke
133 x 165 mmReference
133 x 165 mmReference
Power (net)
234.9 kWReference
—
Rated RPM
2100Reference
—
Torque RPM
2100Reference
—
Starter
electricReference
electricReference
Starter volts
24Reference
24Reference
Engine
—
203.6 kWReference
Power
—
203.6 kWReference
Transmission
Type
power shiftReference
power shiftReference
Gears
4 forward and reverseReference
2 forward and reverseReference
PTO & Hydraulics
Pump flow
511.0 lpmReference
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Steering flow
208.2 lpmReference
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Dimensions
Wheelbase
375 cmReference
—
Weight
30164 kgReference
—
Front tire
29.5-29Reference
—
Rear tire
29.5-29Reference
—
Industrial front
29.5-29Reference
—
Industrial rear
29.5-29Reference
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Operating weight
30164 kgReference
—
Allis Chalmers 945 attachments
Electrical
Charging system
alternatorReference
alternatorReference
Charging amps
—
20Reference
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.