• Vehicle type: unspecified
  • Row-crop, Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1930–1953
  • 6,217 built

It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

We looked and the record does not say what this machine is. How we decide what a machine is

ALLIS-CHALMERS Modell-UC specs: hp, weight, years

CONTINENTAL S-10 four-cylinder. The manufacturer claimed 24.9 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

24.9 hp

18.6 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

Weight
5,966–6,116 lb
Top speed
5.0–11.5 mph

ALLIS-CHALMERS Modell-UC specs: key facts

  • The ALLIS-CHALMERS Modell-UC was built from 1930 to 1953.

  • The ALLIS-CHALMERS Modell-UC has a claimed engine power (gross or net not stated) of 18.6 kW (24.9 hp); it has no measured PTO figure.

  • The ALLIS-CHALMERS Modell-UC is two-wheel drive (2WD).

  • The ALLIS-CHALMERS Modell-UC has a CONTINENTAL S-10 engine, a 4-cylinder unit.Source 1

  • The ALLIS-CHALMERS Modell-UC weighs 2,706–2,774 kg (5,966–6,116 lb) unladen.

  • The ALLIS-CHALMERS Modell-UC has a rear PTO running at 530 rpm.

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”

How does the Modell-UC compare with its class?

  • Limitation:

    Three forward gears is low for its class — 50% below the median of 6 across the 103 machines within 10% of its power that hold this figure.

  • Strength:

    A 105 L fuel tank is high for its class — 191% above the median of 36 L across the 83 machines within 10% of its power that hold this figure.

  • Worth knowing:

    An unladen mass of 2,706 kg is high for its class — 81% above the median of 1,499 kg across the 104 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 104 comparable records. How we work this out

Illustration of the 1930–1953 ALLIS-CHALMERS Modell-UC, a 25 hp farm tractor, colour not recorded — shown unpainted · operator station not recorded — shown as an open platform, a drawing generated from its specification record
Illustration — not a photograph · colour not recorded — shown unpainted · operator station not recorded — shown as an open platform

How much horsepower does a Modell-UC have?

The only figure for the Modell-UC is 24.9 hp (18.6 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.

Engine, claimed (gross/net not stated)
24.9 hp

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”

What engine is in a Modell-UC?

A Modell-UC has a CONTINENTAL S-10, a 4-cylinder engine.

Engine — Modell-UC engine specifications
Make & modelCONTINENTAL S-10
Cylinders4, liquid-cooledSource 2

Source · Traktorenlexikon, “Allis-Chalmers Modell U”

How much will a Modell-UC lift?

Hydraulic and PTO specifications for the Modell-UC are below.

Hydraulics & PTO — Modell-UC hydraulics and PTO specifications
Rear PTO530 rpm

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”

What transmission does a Modell-UC have?

Transmission specifications for the Modell-UC are below.

Transmission — Modell-UC transmission specifications
ClutchFoot-operated spring-loaded dry Rockford single-plate clutch
Top speed5.0–11.5 mph · 8.0–18.5 km/hthe article lists alternatives

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”

How much does a Modell-UC weigh?

A Modell-UC weighs 5,966–6,116 lb (2,706–2,774 kg) unladen.

Weights & dimensions — Modell-UC weights and dimensions
Unladen weight5,966–6,116 lb · 2,706–2,774 kgthe article lists alternatives
Wheelbase87.0 in · 2,210 mm
Length125.1 in · 3,178 mm
Width69.0 in · 1,753 mm
Height66.4–67.6 in · 1,686–1,718 mmthe article lists alternatives

Source · Traktorenlexikon, “Allis-Chalmers Modell UC”

What oil does a Modell-UC take, and how much?

A Modell-UC engine takes 12.0 qt (11.4 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

Modell-UC fluid capacities, grades and service intervals
SystemCapacity
Engine oil12.0 qt · 11.4 LSource: Traktorenlexikon, “Allis-Chalmers Modell UC” · single source, not independently verified
Transmission57.7 qt · 54.6 LSource: Traktorenlexikon, “Allis-Chalmers Modell UC” · single source, not independently verified
Cooling system24.0 qt · 22.7 LSource: Traktorenlexikon, “Allis-Chalmers Modell UC” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

Common questions about the ALLIS-CHALMERS Modell-UC

Is a Modell-UC two-wheel drive or four-wheel drive?

The ALLIS-CHALMERS Modell-UC is two-wheel drive (2WD).

What PTO does a Modell-UC have?

A Modell-UC has a 530 rpm rear PTO.

What serial numbers does a Modell-UC carry?

The source records 4 changes by serial number, so some parts depend on which serial a Modell-UC carries. It does not say whether that is the tractor’s or the engine’s number, and we never work out a year from a serial number.

Sources and how this page was built

Compiled from Traktorenlexikon, “Allis-Chalmers Modell U”; and Traktorenlexikon, “Allis-Chalmers Modell UC”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Allis-Chalmers Modell U — CC BY-SA 4.0, WIKIBOOKS-TL-116537 · revision 1001551. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: Allis-Chalmers Modell UC — CC BY-SA 4.0, WIKIBOOKS-TL-116540 · revision 1000366. Wikibooks contributors (Traktorenlexikon). Original document