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Allis Chalmers 5040 vs Allis Chalmers 6140
Verdict: Allis Chalmers 5040 vs Allis Chalmers 6140
The Allis Chalmers 5040 and the Allis Chalmers 6140 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 40 hp. Allis Chalmers 5040 is the lighter machine (1,746 kg vs 4,000 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 6140 is the newer design (1982 vs 1976). 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
—
—
Overview
Distributor
Allis ChalmersReference
—
Manufacturer
UTB/UniversalReference
Allis ChalmersReference
Adds an additional creeper range to the standard transmission. Creeper was available for either the 3-speed (early) or 4-speed (late) gearbox. On the early transmission, the third gear omitted.Reference
liquid-cooledReference
Original price
$9,823Reference
$15,891Reference
Differential lock
mechanical rearReference
mechanical rearReference
Final drives
—
inboard planetaryReference
Variants
445
similar Long modelReference
—
5040
similar Allis Chalmers modelReference
—
Engine
Displacement
2.3 LReference
2.3 LReference
Bore/Stroke
95 x 110 mmReference
98 x 103 mmReference
Fuel system
direct injectionReference
—
Air cleaner
dryReference
dryReference
Pre-heating
thermostartReference
glow plugsReference
Compression
17:1Reference
23:1Reference
Rated RPM
2600 (late)Reference
2500Reference
Starter volts
12Reference
12Reference
Oil capacity
18.0 LReference
—
Coolant capacity
13.2 LReference
8.0 LReference
Fuel tank
—
50.0 LReference
Transmission
Gears
12 forward and 3 reverseReference
10 forward and 2 reverseReference
Clutch
279mm dry discReference
279.4mm dry discReference
PTO & Hydraulics
PTO (claimed)
29.8 kWReference
29.8 kWReference
Hydraulic system
18.0 LReference
—
Type
creeperReference
synchromeshReference
Capacity
18.0 LReference
—
Valves
1Reference
—
Total flow
23.6 lpmReference
—
Rear Type
II/IReference
IReference
Control
position control and top-link draft sensingReference
top-link draft sensingReference
Rear lift
1199 kgReference
1446 kgReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Engine RPM
540@1970Reference
—
Pump flow
—
37.9 lpmReference
Capacities
Fuel
53.9 LReference
—
Dimensions
Wheelbase
188 cmReference
193 cmReference
Weight
1746 kgReference
4000 to 4400 poundsReference
Front tire
6.00-16Reference
6.00-16Reference
Rear tire
13.6-28Reference
13.6-28Reference
Ag front
6.00-16Reference
8.00-18Reference
Ag rear
13.6-28Reference
14.9-28Reference
Length
294 cmReference
334 cmReference
Width
154 cmReference
173 cmReference
Shipping weight
1746 kgReference
—
Clearance (front axle)
46 cmReference
—
Clearance (rear axle)
50 cmReference
—
Front tread
129 to 198 cmReference
126 to 198 cmReference
Rear tread
132 to 190 cmReference
137 to 213 cmReference
Steering wheel
148 cmReference
159 cmReference
2WD Shipping weight
—
1814 kgReference
4WD Shipping weight
—
1995 kgReference
Allis Chalmers 5040 attachments
5040 Serial Number Location
5040 Serial Numbers
1976
408445Reference
—
1977
410364Reference
—
1978
462148Reference
—
1979
473000Reference
—
1980
474000Reference
—
Electrical
Charging system
alternatorReference
—
Charging amps
30Reference
—
Battery volts
12Reference
12Reference
Ground
—
negativeReference
Allis Chalmers 5040 Height
Hood
134 cmReference
128 cmReference
Exhaust
194 cmReference
223 cmReference
Speeds
Allis Chalmers 6140 attachments
6140 Serial Numbers
1982
—
1001Reference
1983
—
1726Reference
1984
—
1851Reference
1985
—
2711Reference
Location:
—
Serial number on the left side of the fuel tank.Reference
Allis Chalmers 6140 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.