Compare/Allis Chalmers U vs Allis Chalmers UC

Allis Chalmers U vs Allis Chalmers UC

Verdict: Allis Chalmers U vs Allis Chalmers UC

The Allis Chalmers U and the Allis Chalmers UC are both tractors — here is how they stack up on the figures that matter. Allis Chalmers U leads on rated power with 20 hp against 19 hp. Allis Chalmers U is the lighter machine (2,086 kg vs 2,637 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers UC is the newer design (1933 vs 1929). In short: choose the Allis Chalmers U for outright pulling power, or the Allis Chalmers UC 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

20 hp

19 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

The four-speed transmission was offered on tractors equipped with rubber tires.Reference

Allis 300 ci 4-speed 2WDJune 16 - August 8, 1935Link: Nebraska Tractor Test 238 fileReference

Total built

19,009Reference

1,541 UC CaneReference

Variants

standardReference

row-cropReference

Engine

Fuel tank

90.8 LReference

Drawbar (claimed)

14.9 kWReference

14.2 kWReference

Belt (claimed)

23.1 kWReference

Plows

3 (14-inch)Reference

3Reference

Drawbar (tested)

22.6 kWReference

15.8 kWReference

Belt (tested)

26.1 kWReference

25.4 kWReference

Displacement

5.2 LReference

Bore/Stroke

114 x 127 mmReference

Rated RPM

1200Reference

Coolant capacity

18.9 LReference

22.7 LReference

Belt power (max)

25.4 kWReference

—

Max power

22.6 kWReference

—

Aux. fuel

—

3.8 LReference

Belt power (max):

—

25.4 kWReference

Max power:

—

17.7 kWReference

Transmission

Gears

4 forward and 1 reverseReference

Type

—

non-synchronized gearReference

Dimensions

Weight

2086 kgReference

2637 kgReference

Front tire

28x6Reference

24x5Reference

Rear tire

42x11Reference

42x2Reference

Ag front

6.00x16Reference

Ag rear

12.75x24Reference

Length

300 cmReference

368 cmReference

Width

160 cmReference

205 cmReference

Height

135 cmReference

176 cmReference

Wheelbase

—

220 cmReference

U Serial Numbers

1929

1Reference

—

1930

1975Reference

UC1Reference

1931

6554Reference

UC39Reference

1932

7262Reference

UC1100Reference

1933

7419Reference

UC1232Reference

1934

7685Reference

UC1294Reference

1935

8063Reference

UC1552Reference

1936

9471Reference

UC2001Reference

1937

12822Reference

UC2771Reference

1938

14855Reference

UC3757Reference

1939

15587Reference

UC4547Reference

1940

16078Reference

UC4770Reference

1941

16722Reference

UC4972Reference

1942

17137Reference

—

1943

17470Reference

—

1944

17802Reference

5038Reference

1945

-unknown-Reference

-Reference

1946

-unknown-Reference

-Reference

1947

18309, 20174Reference

5068Reference

1948

18613, 20179, 21000Reference

5268Reference

1949

20301, 210036, 22018Reference

5526Reference

1950

20422, 22024Reference

5644Reference

Location:

Rear of differential, near PTOReference

Rear axle near PTOReference

Test results

Belt fuel use (max)

15.5 l/hourReference

—

Max pull

1112 kgReference

—

Belt fuel use (max):

—

15.5 l/hourReference

Max pull:

—

1176 kgReference

UC Serial Numbers

1951

—

5806Reference

1952

—

5939Reference

1953

—

6143Reference

Capacities

Diameter

—

25 cmReference

RPM

—

1095Reference

Speed

—

874.78 meters/minReference

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.