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Allis Chalmers 7040 vs Allis Chalmers 7045
Verdict: Allis Chalmers 7040 vs Allis Chalmers 7045
The Allis Chalmers 7040 and the Allis Chalmers 7045 are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 7045 leads on rated power with 146 hp against 136 hp. Allis Chalmers 7040 is the lighter machine (5,307 kg vs 11,450 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 7045 is the newer design (1978 vs 1975). In short: choose the Allis Chalmers 7045 for outright pulling power, or the Allis Chalmers 7040 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
136 hp
146 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
Six gears in two ranges (slow/fast). Clutchless power shift between gears.Reference
Six gears in two ranges. Power shift between gears in range.Reference
Original price
$24,550Reference
$43,328Reference
Differential lock
power standardReference
standardReference
Steering
hydrostatic powerReference
hydrostatic powerReference
Final drives
—
inboard planetaryReference
Engine
Drawbar (claimed)
87.2 kWReference
92.5 kWReference
Drawbar (tested)
85.3 kWReference
92.0 kWReference
Displacement
7.0 LReference
7.0 LReference
Bore/Stroke
108 x 127 mmReference
108 x 127 mmReference
Pre-heating
coolant heater (optional)Reference
—
Compression
16:1Reference
16:1Reference
Rated RPM
2300Reference
2300Reference
Starter volts
12Reference
12Reference
Oil capacity
18.0 LReference
28.0 LReference
Coolant capacity
29.3 LReference
29.3 LReference
Power at rated engine speed
101.6 kWReference
109.5 kWReference
Max power
85.3 kWReference
92.0 kWReference
Fuel tank
—
49.2 LReference
Engine
—
129.0 kWReference
Power
—
129.0 kWReference
Air cleaner
—
dry with pre-cleanerReference
Transmission
Transmission
Power ShiftReference
Power ShiftReference
Gears
12 forward and 2 reverseReference
12 forward and 2 reverseReference
PTO & Hydraulics
PTO (claimed)
101.4 kWReference
108.1 kWReference
PTO (tested)
101.8 kWReference
109.5 kWReference
Hydraulic system
91.2 LReference
—
Type
partial power shiftReference
partial power shiftReference
Capacity
91.2 LReference
—
Valves
2 or 3Reference
2 or 3Reference
Pump flow
83.3 lpmReference
83.3 lpmReference
Total flow
170.3 lpmReference
170.3 lpmReference
Rear Type
III/IIReference
3/2Reference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000 (optional)Reference
540/1000Reference
Power at rated PTO speed
101.5 kWReference
109.4 kWReference
Steering flow
—
36.0 lpmReference
Rear lift (at 24"/610mm)
—
3030 kgReference
Capacities
Fuel
49.2 LReference
—
Dimensions
Wheelbase
269 cmReference
269 cmReference
Weight
5307 kgReference
11450 to 14500 poundsReference
Front tire
11.00-16Reference
11.00x16Reference
Rear tire
18.4-38Reference
18.4x38Reference
Ag front
14L-16.1Reference
14Lx16Reference
Ag rear
16.9-38Reference
18.4x42Reference
Length
440 cmReference
426 cmReference
Width
303 cmReference
303 cmReference
Operating weight
5307 kgReference
—
Ballasted weight
7883 kgReference
—
Clearance (front axle)
56 cmReference
—
Clearance (rear axle)
71 cmReference
—
Front tread
157 to 223 cmReference
—
Rear tread
162 to 231 cmReference
—
Steering wheel
220 cmReference
220 cmReference
Ground clearance
—
71 cmReference
Rear axle
—
101 mmReference
Shipping
—
5193 kgReference
Operating
—
6577 kgReference
Ballasted
—
8613 kgReference
Allis Chalmers 7040 attachments
7040 Serial Numbers
1975
1303Reference
—
1976
4089Reference
—
1977
6839Reference
—
Location:
Above PTO shieldReference
Above PTO shieldReference
Electrical
Charging system
alternatorReference
—
Battery volts
12Reference
—
Allis Chalmers 7040 Height
Hood
172 cmReference
172 cmReference
Exhaust
294 cmReference
294 cmReference
Test results
Fuel use
33.7 l/hourReference
37.1 l/hourReference
Max pull
6144 kgReference
7007 kgReference
Speeds
Allis Chalmers 7045 attachments
7045 Serial Numbers
1978
—
1234Reference
1979
—
2152Reference
1980
—
3399Reference
1981
—
4225Reference
Allis Chalmers 7045 Height
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.