Compare/Allis Chalmers 5040 vs Allis Chalmers K

Allis Chalmers 5040 vs Allis Chalmers K

Verdict: Allis Chalmers 5040 vs Allis Chalmers K

The Allis Chalmers 5040 and the Allis Chalmers K are both tractors — here is how they stack up on the figures that matter. Allis Chalmers 5040 leads on rated power with 40 hp against 36 hp. Allis Chalmers 5040 is the lighter machine (1,746 kg vs 5,216 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 5040 is the newer design (1976 vs 1929). In short: choose the Allis Chalmers 5040 for outright pulling power, or the Allis Chalmers K if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

40 hp

36 hp

Confidence

40%

Guide price

—

Overview

Distributor

Allis ChalmersReference

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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

The four-speed transmission was introduced in 1935 at tractor serial number 4451.Reference

Original price

$9,823Reference

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Differential lock

mechanical rearReference

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Total built

—

9,468Reference

Drive

—

crawlerReference

Variants

445

similar Long modelReference

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5040

similar Allis Chalmers modelReference

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gasolineReference

—

wide gasReference

—

dieselReference

WKO

—

wide dieselReference

Engine

Displacement

2.3 LReference

8.4 LReference

Bore/Stroke

95 x 110 mmReference

127 x 165 mmReference

Fuel system

direct injectionReference

—

Air cleaner

dryReference

oil bathReference

Pre-heating

thermostartReference

—

Compression

17:1Reference

5.2:1Reference

Rated RPM

2600 (late)Reference

1050Reference

Starter volts

12Reference

—

Oil capacity

18.0 LReference

20.8 LReference

Coolant capacity

13.2 LReference

41.6 LReference

Fuel tank

—

147.6 LReference

Drawbar (claimed)

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26.5 kWReference

Belt (claimed)

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36.8 kWReference

Drawbar (tested)

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40.0 kWReference

Belt (tested)

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46.4 kWReference

Belt power (max)

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46.4 kWReference

Max power

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40.0 kWReference

Transmission

Gears

12 forward and 3 reverseReference

4 forward and 1 reverseReference

Clutch

279mm dry discReference

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PTO & Hydraulics

PTO (claimed)

29.8 kWReference

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Hydraulic system

18.0 LReference

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Type

creeperReference

gearReference

Capacity

18.0 LReference

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Valves

1Reference

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Total flow

23.6 lpmReference

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Rear Type

II/IReference

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Control

position control and top-link draft sensingReference

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Rear lift

1199 kgReference

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Rear PTO

independentReference

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Rear PTO Type

540 (1.375)Reference

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Engine RPM

540@1970Reference

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Capacities

Fuel

53.9 LReference

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Dimensions

Wheelbase

188 cmReference

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Weight

1746 kgReference

5216 kgReference

Front tire

6.00-16Reference

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Rear tire

13.6-28Reference

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Ag front

6.00-16Reference

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Ag rear

13.6-28Reference

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Length

294 cmReference

314 cmReference

Width

154 cmReference

38 cmReference

Shipping weight

1746 kgReference

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Clearance (front axle)

46 cmReference

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Clearance (rear axle)

50 cmReference

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Front tread

129 to 198 cmReference

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Rear tread

132 to 190 cmReference

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Steering wheel

148 cmReference

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K Width

—

167 cmReference

Height (hood)

—

162 cmReference

K Gauge

—

121 cmReference

WK Gauge

—

160 cmReference

Allis Chalmers 5040 attachments

5040 Serial Number Location

5040 Serial Numbers

1976

408445Reference

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1977

410364Reference

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1978

462148Reference

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1979

473000Reference

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1980

474000Reference

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Electrical

Charging system

alternatorReference

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Charging amps

30Reference

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Battery volts

12Reference

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Allis Chalmers 5040 Height

Hood

134 cmReference

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Exhaust

194 cmReference

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Speeds

K Serial Numbers

1929

—

1Reference

1930

—

49Reference

1931

—

1373Reference

1932

—

2334Reference

1933

—

2654Reference

1934

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3046Reference

1935

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3594Reference

1936

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4793Reference

Location:

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Serial number on the transmission case or instrument panelReference

Allis Chalmers K Tracks

Length on ground

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170 cmReference

Area on ground

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1.3 m²Reference

Ground pressure

—

0.4 barReference

Test results

Belt fuel use (max)

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23.5 l/hourReference

Max pull

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5345 kgReference

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.