Allis Chalmers D-12
Built: 1959–1968 · Series: D-Baureihe
More machines from model year 1959
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Allis-Chalmers D series (1957–1969) – the orange tractors from Milwaukee and La Porte: D-10 to D-21, the number as size class, petrol, LPG and diesel, Power Director and Traction Booster
The D series was Allis-Chalmers' programme of the late 1950s and 1960s – the tractors that replaced the letter models WD and CA and with which the maker from Milwaukee, Wisconsin, loaded its West Allis works and the La Porte, Indiana, tractor plant. The type logic: D marks the range, the number orders the size in ascending order – D-10 and D-12 the small one- and two-row tractors, D-14 and D-15 the mid-range, D-17 the best seller at about 50 hp, D-19 of 1961 the first production tractor with a turbodiesel, D-21 of 1963 the first Allis-Chalmers over 100 hp with the six-cylinder of 7.0 litres. The fuels were a matter of choice: petrol, LPG and diesel, as the register entries show; the transmissions carried the Power Director, a two-speed powershift with hand lever, and the hydraulics the Traction Booster, which transfers weight from the implement to the rear wheels.
Read on 3 more paragraphs
The register lists 7 versions with 17.6 to 86.1 kW from four- and six-cylinders of 2,273 to 6,974 cm³ at 1,650 to 2,200 rpm, unladen weights from 1,297 to 4,874 kg, lengths from 3,061 to 4,079 mm, widths from 1,575 to 2,327 mm and heights from 1,419 to 2,708 mm.
The D series is the most-collected Allis-Chalmers generation; the D-17 was built in over 60,000 units, and the range passed into the 100s (170, 180, 190) in 1964.
On used tractors, originality, engine condition and carburettor or injection, Power Director (clutch pack), gearbox, Traction Booster hydraulics and sheet metal count; parts run through collector dealers in North America.
Sources: SpecCodex register, model data: Allis-Chalmers D-Baureihe, Allis-Chalmers (Wikipedia)
Technical data
Engine
| Fuel | petrolcorrect |
|---|---|
| Power | 23.9 hp (17.6 kW)correct |
| Rated speed | 1,650 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 2,273 cm³correct |
| Bore | 85.73 mmcorrect |
| Stroke | 98.43 mmcorrect |
| Compression ratio | 7.75correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,073 mmcorrect |
|---|---|
| Width | 1,651 mmcorrect |
| Height | 1,943 mmcorrect |
| Wheelbase | 2,000 mmcorrect |
| Ground clearance | 516 mmcorrect |
| Unladen weight | 1,336 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4 V/1 Rcorrect |
| Front tyres | 5.00-15correct |
| Rear tyres | 11-24correct |
| Top speed | 20 km/hcorrect |
Working data
| Fuel tank capacity | 54.6 lcorrect |
|---|
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 4,201correct |
Where this model stands
Power-to-weight ratio: 13.2 kW/t (18 kW / 1.3 t)
Power class: Compact (< 40 hp)
Stronger than 10% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Allis Chalmers D-12 have?
The Allis Chalmers D-12 delivers 23.9 hp.
How much does the Allis Chalmers D-12 weigh?
The unladen weight is 1,336 kg.
What engine does the Allis Chalmers D-12 have?
4 cylinders, 2,273 cm³ displacement, Benzin.
How fast does the Allis Chalmers D-12 go?
Top speed is 20 km/h.
What are the dimensions of the Allis Chalmers D-12?
3,073 mm × 1,651 mm × 1,943 mm.
When was the Allis Chalmers D-12 built?
Production years: 1959–1968.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 24 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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