Allis Chalmers 6040
The Allis Chalmers 6040 is a versatile tractor designed for various farming tasks. It features a Perkins 3.152 diesel engine with three cylinders and a displacement of 152.7 cubic inches. This liquid-cooled engine runs at 2250 RPM and uses natural aspiration for fuel intake. The tractor's power is managed through a partial synchronized transmission, offering 10 forward gears and 2 reverse gears for flexible operation. Weighing 4680 pounds, the 6040 model is equipped with hydrostatic power steering for easy maneuvering. It runs on a 12-volt electrical system and uses an electric starter. The tractor comes with agricultural tires, with 6.00-16 sized front tires and larger 14.9-28 rear tires. For added versatility, it features a Category II hitch, suitable for attaching various implements. The steering system has a flow rate of 7.5 gallons per minute and can handle up to 1100 psi of pressure, ensuring responsive control even under heavy loads.

Quick specs
- Category
- Utility
- Operating Weight
- 4,680 lb
- Transmission
- Partial synchronized
Overview
About the Allis Chalmers 6040
The Allis Chalmers 6040 is a versatile tractor designed for various farming tasks. It features a Perkins 3.152 diesel engine with three cylinders and a displacement of 152.7 cubic inches. This liquid-cooled engine runs at 2250 RPM and uses natural aspiration for fuel intake. The tractor's power is managed through a partial synchronized transmission, offering 10 forward gears and 2 reverse gears for flexible operation. Weighing 4680 pounds, the 6040 model is equipped with hydrostatic power steering for easy maneuvering. It runs on a 12-volt electrical system and uses an electric starter. The tractor comes with agricultural tires, with 6.00-16 sized front tires and larger 14.9-28 rear tires. For added versatility, it features a Category II hitch, suitable for attaching various implements. The steering system has a flow rate of 7.5 gallons per minute and can handle up to 1100 psi of pressure, ensuring responsive control even under heavy loads.
Full specifications
Every recorded spec
General
| Manufacturer | Allis Chalmers |
|---|---|
| Model | 6040 |
| Category | Utility tractor |
| Operating weight | 4,680lb |
Engine
| Make | Perkins |
|---|---|
| Model | 3.152 |
| Cylinders | 3 |
| Displacement | 152.7ci |
| Bore | 3.6in |
| Stroke | 5in |
Transmission
| Type | Partial synchronized |
|---|---|
| Forward gears | 10 |
| Reverse gears | 2 |
Chassis & drive
| Steering | Hydrostatic power steering |
|---|
Dimensions
| Operating weight | 4,680lb |
|---|
Head to head
6040 vs. Utility median
How the Allis Chalmers 6040 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Displacement | 153 ci | 183 ci | -17% | 40th |
| Cylinders | 3 | 4 | -25% | 23rd |
| Forward Gears | 10 | 12 | -17% | 39th |
| Operating Weight | 4,680 lb | 5,303 lb | -12% | 45th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 4,941–5,720 models).
Compare to tractors with similar specs
Commonly compared Allis Chalmers tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers 180 | — | 10,300 lb | 1967–1973 | Compare → |
| Allis Chalmers 20-35 | — | 7,095 lb | — | Compare → |
| Allis Chalmers 25-40 E | — | 7,000 lb | — | Compare → |
| Allis Chalmers 440 | 218 hp | 20,230 lb | 1973–1977 | Compare → |
| Allis Chalmers 4W-220 | 220 hp | 21,475 lb | 1982–1984 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Advance-Rumely 6A | — | 6,370 lb | — | Compare → |
| Advance-Rumely DoAll | — | 3,702 lb | — | Compare → |
| Advance-Rumely OilPull B 25/45 | — | 25,000 lb | — | Compare → |
| Advance-Rumely OilPull E 30/60 | — | 26,300 lb | — | Compare → |
| Advance-Rumely OilPull F 15/30 | — | 16,500 lb | — | Compare → |
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Gallery
Allis Chalmers 6040 photos





FAQ
Common questions
What engine configuration does the Allis Chalmers 6040 use?
The Allis Chalmers 6040 is equipped with a 3-cylinder engine displacing 152.7 ci.
Which transmission does the Allis Chalmers 6040 use?
The Allis Chalmers 6040 is equipped with a Partial synchronized transmission with 10 forward gears.
What three-point hitch category does the Allis Chalmers 6040 use?
The Allis Chalmers 6040 has a Category II three-point hitch.
What is the operating weight of the Allis Chalmers 6040?
In working trim, the Allis Chalmers 6040 comes in at roughly 4,680 lb.
How do I maintain a Allis Chalmers 6040?
Routine service for the Allis Chalmers 6040 covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.


