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Allis Chalmers 7580 vs Allis Chalmers 8070
Verdict: Allis Chalmers 7580 vs Allis Chalmers 8070
The Allis Chalmers 7580 and the Allis Chalmers 8070 are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 7580 leads on rated power with 186 hp against 171 hp. Allis Chalmers 8070 is the lighter machine (16,850 kg vs 23,100 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 8070 is the newer design (1982 vs 1976). In short: choose the Allis Chalmers 7580 for outright pulling power, or the Allis Chalmers 8070 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
85
Fit score
Best match
Clear
Allis Chalmers
85
Fit score
Best match
Clear
Rated power
186 hp
171 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
With 20.8x38 rear tires.Reference
Six power shift gears (1-6) in two ranges (slow/fast). Clutch must be used to shift range. Pressing the clutch pedal half-way automatically downshifts from 5th/6th to 4th gear.Reference
Total built
1610Reference
2,354Reference
Original price
$63,084Reference
$60,337Reference
Steering
hydrostatic powerReference
hydrostatic powerReference
Differential lock
—
electro-hydraulic rearReference
Engine
Fuel tank
643.5 LReference
—
Drawbar (claimed)
114.1 kWReference
—
Drawbar (tested)
114.6 kWReference
108.4 kWReference
Displacement
7.0 LReference
7.0 LReference
Bore/Stroke
108 x 127 mmReference
108 x 127 mmReference
Air cleaner
dryReference
dryReference
Compression
16:1Reference
15.5:1Reference
Rated RPM
2550Reference
2400Reference
Idle RPM
775-2750Reference
—
Firing order
1-5-3-6-2-4Reference
—
Starter volts
12Reference
12Reference
Oil capacity
23.7 LReference
28.0 LReference
Coolant capacity
36.0 LReference
34.1 LReference
Power at rated engine speed
139.0 kWReference
127.3 kWReference
Max power
114.6 kWReference
108.4 kWReference
Transmission
Transmission
Power DirectorReference
Power ShiftReference
Gears
20 forward and 4 reverseReference
12 forward and 2 reverseReference
PTO & Hydraulics
PTO (claimed)
138.7 kWReference
—
PTO (tested)
139.0 kWReference
127.3 kWReference
Type
partial power shiftReference
Allis-ChalmersReference
Valves
3 to 4Reference
2 or 3Reference
Pump flow
87.1 lpmReference
51.1 lpmReference
Total flow
283.5 lpmReference
170.3 lpmReference
Rear Type
IIIReference
III/IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000Reference
1000Reference
Steering flow
—
36.0 lpmReference
Rear lift (at 24"/610mm)
—
3719 kgReference
Power at rated PTO speed
—
127.8 kWReference
Dimensions
Wheelbase
320 cmReference
269 cmReference
Weight
23100 to 23510 poundsReference
16850 to 17300 poundsReference
Front tire
20.8x38Reference
10.00-16Reference
Rear tire
20.8x38Reference
18.4-38Reference
Ag front
18.4x38Reference
—
Ag rear
18.4x38Reference
16.9-38Reference
Length
571 cmReference
474 cmReference
Width
303 cmReference
303 cmReference
Height (hood)
216 cmReference
—
Height (exhaust)
381 cmReference
—
Ground clearance
43 cmReference
—
Front tread
157 to 312 cmReference
—
Rear tread
157 to 312 cmReference
—
Shipping
10478 kgReference
—
Operating
10664 kgReference
7643 kgReference
Ballasted
11340 kgReference
10147 kgReference
2WD Ag front
—
18.4-16Reference
4WD Ag front
—
14.9-24Reference
Clearance (front axle)
—
55 cmReference
Clearance (rear axle)
—
73 cmReference
4WD Operating
—
7847 kgReference
7580 Serial Numbers
1976
1001Reference
—
1977
1288Reference
—
1978
1605Reference
—
1979
2218Reference
—
1980
2486Reference
—
1981
2717Reference
1001Reference
Location:
Front frame, rear left sideReference
—
Final
3018Reference
3354Reference
Electrical
Charging system
alternatorReference
alternatorReference
Batteries
4Reference
—
Battery volts
12Reference
12Reference
Charging amps
—
100Reference
Test results
Fuel use
47.7 l/hourReference
39.4 l/hourReference
Max pull
10573 kgReference
8517 kgReference
Speeds
Capacities
Fuel
—
94.6 LReference
Rear diff.
—
64.7 LReference
8070 Serial Number Location
8070 Serial Numbers
1982
—
1004Reference
1983
—
1430Reference
1984
—
2090Reference
1985
—
2903Reference
Allis Chalmers 8070 Height
Hood
—
177 cmReference
Cab
—
294 cmReference
Exhaust
—
289 cmReference
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.