Compare/Allis Chalmers D12 vs SOMECA Som 45

Allis Chalmers D12 vs SOMECA Som 45

Verdict: Allis Chalmers D12 vs SOMECA Som 45

The Allis Chalmers D12 and the SOMECA Som 45 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 29 hp. Allis Chalmers D12 is the lighter machine (1,270 kg vs 2,415 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. SOMECA Som 45 holds more fuel (56.0 L vs 47.3 L) for longer stints between fills. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

SOMECA

Fit score

Best match

Clear

Rated power

29 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

SOMECAReference

Allis D12 with 10x24 rear tires.Reference

With 14-30 rear tires.Reference

Original price

$3,522 (1968)Reference

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Variants

D12 High Clearance

cultivation tractorReference

—

D10

single-row tractorReference

—

Engine

Fuel tank

47.3 LReference

56.0 LReference

Engine

23.1 kWReference

—

Drawbar (claimed)

19.2 kWReference

21.6 kWReference

Drawbar (tested)

21.9 kWReference

29.2 kWReference

Displacement

2.4 LReference

3.8 LReference

Bore/Stroke

89 x 98 mmReference

105 x 120 mmReference

Power

23.1 kWReference

—

Air cleaner

oil bathReference

—

Compression

7.5:1Reference

15.5:1Reference

Rated RPM

1650Reference

1600Reference

Starter volts

6Reference

12Reference

Oil capacity

3.8 LReference

—

Coolant capacity

7.6 LReference

21.0 LReference

Firing order

1-2-4-3Reference

—

Power at rated engine speed

24.8 kWReference

—

Max power

21.9 kWReference

29.2 kWReference

Belt (claimed)

—

26.8 kWReference

Belt (tested)

—

30.1 kWReference

Starter

—

electricReference

Belt power (max)

—

30.1 kWReference

Transmission

Gears

4 forward and 1 reverseReference

7 forward and 2 reverseReference

PTO & Hydraulics

PTO (claimed)

22.4 kWReference

—

PTO (tested)

24.8 kWReference

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Type

sliding gearReference

gearReference

Valves

1 or 2Reference

—

Rear Type

IReference

—

Rear PTO Type

540Reference

—

Dimensions

Wheelbase

200 cmReference

—

Weight

1270 kgReference

2415 kgReference

Front tire

5.00x15Reference

6.00-19Reference

Rear tire

10x24Reference

14-30Reference

Ag front

5.00x15Reference

6.00-19Reference

Ag rear

11x24Reference

11-36Reference

Length

307 cmReference

—

Height (hood)

133 cmReference

—

Height (exhaust)

194 cmReference

—

Shipping weight

1270 kgReference

—

Ballasted weight

2553 kgReference

—

Clearance (front axle)

51 cmReference

—

Clearance (rear axle)

56 cmReference

—

Front tread

125 to 203 cmReference

—

Rear tread

132 to 201 cmReference

—

D12 Serial Number Location

D12 Serial Numbers

1959

1001Reference

—

1960

1950Reference

—

1961

2801Reference

—

1962

3638Reference

—

1963

5501Reference

—

1964

6012Reference

—

1965

9192Reference

—

1966

9508Reference

—

1967

9830Reference

—

Capacities

RPM

1220Reference

—

Speed

779.07 meters/minReference

—

Test results

Fuel use

10.6 l/hourReference

—

Max pull

1923 kgReference

2834 kgReference

Belt fuel use (max)

—

9.8 l/hourReference

Speeds

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.