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Allis Chalmers 6040 vs Allis Chalmers D15
Verdict: Allis Chalmers 6040 vs Allis Chalmers D15
The Allis Chalmers 6040 and the Allis Chalmers D15 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 40 hp. Allis Chalmers D15 is the lighter machine (3,985 kg vs 4,250 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 6040 is the newer design (1974 vs 1960). 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
Allis Chalmers
62
Fit score
Best match
Clear
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
40 hp
40 hp
Confidence
40%
40%
Guide price
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—
Overview
Distributor
Allis ChalmersReference
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Manufacturer
RenaultReference
Allis ChalmersReference
With 13.6-28 rear tires.Reference
The shuttle transmission is controlled using the gear shift lever and the shuttle control lever. The tractor must be stopped, and clutch used, to select one of four speeds with the gear shift. The shuttle control lever enables a shift between forward, reverse, or neutral without clutching. A PTO could be ordered on the industrial D15 with the shuttle, but it ran at 875 RPMs.Reference
Total built
499Reference
957 (diesel)Reference
Original price
$6,934Reference
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Differential lock
mechanical rearReference
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Steering
—
power optionalReference
Engine
Drawbar (claimed)
27.4 kWReference
26.3 kWReference
Drawbar (tested)
27.4 kWReference
26.3 kWReference
Displacement
2.5 LReference
2.9 LReference
Bore/Stroke
91 x 127 mmReference
90 x 111 mmReference
Air cleaner
paper elementReference
oil bathReference
Compression
18.5:1Reference
15.35:1Reference
Rated RPM
2250Reference
2000Reference
Idle RPM
725-2475Reference
—
Starter
electricReference
—
Starter volts
12Reference
12Reference
Coolant capacity
7.6 LReference
10.4 LReference
Oil capacity
27.4 LReference
14.0 LReference
Oil change
75 hReference
—
Power at rated engine speed
30.1 kWReference
27.9 kWReference
Max power
27.4 kWReference
24.8 kWReference
Plows
—
3Reference
Firing order
—
1-3-4-2Reference
Sparkplug gap
—
0.635 mmReference
Point gap
—
0.559 mmReference
Intake valve clearance
—
0.254 mmReference
Exhaust valve clearance
—
0.483 mmReference
Transmission
Gears
10 forward and 2 reverseReference
4 forward and reverseReference
Transmission
—
shuttleReference
Oil type
—
SAE80EPReference
PTO & Hydraulics
PTO (claimed)
30.1 kWReference
29.8 kWReference
PTO (tested)
30.1 kWReference
29.8 kWReference
Hydraulic system
27.4 LReference
9.5 LReference
Type
partial synchronizedReference
partial power shiftReference
Capacity
27.4 LReference
9.5 LReference
Pressure
158.6 barReference
158.6 barReference
Pump flow
25.4 lpmReference
—
Total flow
50.0 lpmReference
—
Steering flow
28.4 lpmReference
—
Steering press.
75.8 barReference
—
Rear Type
IIReference
II/IReference
Control
lower-link draft sensingReference
—
Rear PTO
liveReference
liveReference
Clutch
254mm dry discReference
—
Rear PTO Type
540 (1.375)Reference
540Reference
Engine RPM
540@2160Reference
—
Power at rated PTO speed
29.7 kWReference
23.0 kWReference
Capacities
Fuel
45.4 LReference
59.6 LReference
Diameter
—
22 cmReference
RPM
—
1678Reference
Speed
—
1205.79 meters/minReference
Dimensions
Wheelbase
200 cmReference
223 cmReference
Weight
4250 to 4680 poundsReference
3985 to 4220 poundsReference
Front tire
6.00-16Reference
5.50-16Reference
Rear tire
14.9-28Reference
12.4-26Reference
Ag front
6.00-16Reference
7.50-16Reference
Ag rear
14.9-28Reference
14.9-26Reference
Length
325 cmReference
331 cmReference
Width
165 cmReference
170 cmReference
Clearance (front axle)
40 cmReference
53 cmReference
Clearance (rear axle)
53 cmReference
61 cmReference
Front tread
121 to 190 cmReference
129 to 198 cmReference
Rear tread
127 to 198 cmReference
137 to 223 cmReference
Shipping
1927 kgReference
—
Operating
2122 kgReference
1914 kgReference
Ballasted
2753 kgReference
3436 kgReference
Steering wheel
157 cmReference
—
Height (hood)
—
145 cmReference
Height (exhaust)
—
203 cmReference
6040 Serial Numbers
Location:
Serial number plate on the right-front of the fuel tank, under the hood.Reference
Torque housingReference
Electrical
Ground
negativeReference
positiveReference
Charging system
alternatorReference
—
Battery volts
12Reference
12Reference
Batteries
—
2 (diesel)Reference
Battery AH
—
70Reference
Allis Chalmers 6040 Height
Hood
136 cmReference
—
Exhaust
213 cmReference
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Test results
Fuel use
10.6 l/hourReference
12.5 l/hourReference
Max pull
2072 kgReference
2571 kgReference
Speeds
D15 Serial Numbers
1960
—
1001Reference
1961
—
1900Reference
1962
—
6470Reference
Final
—
8169Reference
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.