Allis Chalmers 6040
Built: 1974-1974 · Series: Other models
More machines from model year 1974
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Allis-Chalmers – other models: the collective page of the orange tractors from Milwaukee outside the named ranges, from the 10-18 and 20-35 through the letter models B, C, WC and WD to the 100s (170 to 220)
This page gathers the Allis-Chalmers tractors the register could not assign to a named range – the brand from Milwaukee, Wisconsin, that began in 1914 with the 10-18, was the first maker to introduce pneumatic tyres on a tractor with the Model U in 1932 and created the affordable small tractor for the American family farm with the Model B of 1937, before being sold to Deutz in 1985. The type logic: the early number types 10-18, 12-20 and 20-35 give drawbar and belt power in hp; the letter models A, B, C, CA, WC and WD of the 1930s to 1950s denote model types, not size; the D series (D-10 to D-21) of the 1950s and 1960s orders in ascending order; the 100s (160 to 220) of 1964 to 1975 give roughly the hp class, XT the turbocharger; the 7000s (7010 to 7080) of the 1970s with the Acousta Cab and the 8000s (8010 to 8070) of the 1980s are the last own ranges, the 4W-220 and 4W-305 the articulated tractors, the 5000s and 6000s bought-in compacts from Toyosha and Fiat. The engines are Allis-Chalmers' own as petrol, LPG and diesel versions, Perkins in some diesel models and Toyosha in the Japanese compacts.
Read on 3 more paragraphs
The register lists here 115 versions with 6 to 305 hp from two- to eight-cylinders of 1,002 to 11,973 cm³, widths from 915 to 2,438 mm and heights from 1,191 to 3,531 mm.
From the 1930s to the 1970s Allis-Chalmers was the third big American maker after John Deere and International Harvester; the Persian Orange tractors are collectors' pieces today with their own association, and the brand lived on through Deutz-Allis and AGCO Allis until 2001.
On used tractors, originality, engine condition (carburettor on petrol engines, injection pump on diesels), clutch and transmission (Power Director on the D-17 and the 100s), hydraulics (Traction Booster) and sheet metal count; parts run through collector dealers and AGCO for the late ranges.
Sources: Kennwerte der Modelle Allis-Chalmers (weitere Modelle), (Wikipedia)
Technical data
Engine
| Engine make | Perkinscorrect |
|---|---|
| Engine model | 3,152correct |
| Fuel | petrolcorrect |
| Power | 40 hp (30 kW)correct |
| Rated speed | 2,250 rpmcorrect |
| Torque | 155 Nmcorrect |
| Cylinders | 3correct |
| Displacement | 2,502 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,251 mmcorrect |
|---|---|
| Width | 1,651 mmcorrect |
| Height | 1,575 mmcorrect |
| Wheelbase | 1,982 mmcorrect |
| Unladen weight | 2,122 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel driveWDcorrect |
|---|---|
| Gearbox | 10 V/2 Rcorrect |
| Forward gears | 10correct |
| Reverse gears | 2correct |
| Top speed | 25 km/hcorrect |
Working data
| Fuel tank capacity | 51 lcorrect |
|---|
Origin and approval
| Plant | Francecorrect |
|---|
Other data
| Linkage category | Cat Icorrect |
|---|
Where this model stands
Power-to-weight ratio: 14.1 kW/t (30 kW / 2.1 t)
Power class: Universal (40–100 hp)
Stronger than 26% of the tractors in the register — out of 15,650 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 6040 have?
The Allis Chalmers 6040 delivers 40 hp.
How much does the Allis Chalmers 6040 weigh?
The unladen weight is 2,122 kg.
What engine does the Allis Chalmers 6040 have?
3 cylinders, 2,502 cm³ displacement, gasoline.
How fast does the Allis Chalmers 6040 go?
Top speed is 25 km/h.
What are the dimensions of the Allis Chalmers 6040?
3,251 mm × 1,651 mm × 1,575 mm.
When was the Allis Chalmers 6040 built?
Production years: 1974.
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.
- 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 25 individual figures for this model. They come from 3 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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