Allis Chalmers 7580
The Allis Chalmers 7580 is a powerful utility tractor built from 1977 to 1981. It has a strong 4x4 articulated frame and four-wheel drive, making it great for tough jobs. The tractor is big, measuring 225 inches long, 95.5 inches wide, and 150 inches tall. It's also very heavy, weighing 25,000 pounds, which is more than most other tractors. Under the hood, the 7580 has a 6-cylinder diesel engine made by Allis Chalmers. This engine is very strong, with 186.35 horsepower, which is more powerful than most tractors. It has a very large engine size of 426 cubic inches, also bigger than average. The tractor has 20 forward gears and 4 reverse gears, giving the driver lots of choices for different tasks. It has a rear hitch for attaching tools and a power take-off (PTO) that spins at 540 rpm for running equipment. The cab, called an Acousta cab, helps keep the driver comfortable and the noise level down to 79 decibels when working hard.
Quick specs
- Category
- Utility
- Engine Power Output
- 186hp
- Operating Weight
- 25,000 lb
- Transmission
- Partial power shift
At a glance
How the 7580 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The 7580 ranks at the 94th percentile for engine power among recorded utility tractors.
Overview
About the Allis Chalmers 7580
The Allis Chalmers 7580 is a powerful utility tractor built from 1977 to 1981. It has a strong 4x4 articulated frame and four-wheel drive, making it great for tough jobs. The tractor is big, measuring 225 inches long, 95.5 inches wide, and 150 inches tall. It's also very heavy, weighing 25,000 pounds, which is more than most other tractors. Under the hood, the 7580 has a 6-cylinder diesel engine made by Allis Chalmers. This engine is very strong, with 186.35 horsepower, which is more powerful than most tractors. It has a very large engine size of 426 cubic inches, also bigger than average. The tractor has 20 forward gears and 4 reverse gears, giving the driver lots of choices for different tasks. It has a rear hitch for attaching tools and a power take-off (PTO) that spins at 540 rpm for running equipment. The cab, called an Acousta cab, helps keep the driver comfortable and the noise level down to 79 decibels when working hard.
Full specifications
Every recorded spec
General
| Manufacturer | Allis Chalmers |
|---|---|
| Model | 7580 |
| Category | Utility tractor |
| Type | 4x4 articulated 4WD |
| Years built | 1977–1981 |
| Operating weight | 25,000lb |
Engine
| Make | Allis Chalmers |
|---|---|
| Model | 3750 Mark II |
| Power | 186.35hp |
| Cylinders | 6 |
| Displacement | 426ci |
| Bore | 4.25in |
| Stroke | 5in |
Transmission
| Type | Partial power shift |
|---|---|
| Forward gears | 20 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x4 articulated 4WD |
|---|---|
| Drive | 4WD |
| Steering | Hydrostatic power |
| Brakes | Hydraulic wet discs |
| Cab | Acousta cab |
Hydraulics
| Type | Closed center |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 225in |
|---|---|
| Width | 95.5in |
| Height | 150in |
| Operating weight | 25,000lb |
Tires
| Front | 23.1-30 |
|---|---|
| Rear | 23.1-30 |
Capacities
| Cooling system | 9.5gal |
|---|
Head to head
7580 vs. Utility median
How the Allis Chalmers 7580 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 186 hp | 55 hp | +239% | 94th |
| Engine Displacement | 426 ci | 183 ci | +133% | 92nd |
| Cylinders | 6 | 4 | +50% | 93rd |
| Forward Gears | 20 | 12 | +67% | 86th |
| Operating Weight | 25,000 lb | 5,303 lb | +371% | 96th |
| Length | 225 in | 137 in | +65% | 95th |
| Width | 95.5 in | 66 in | +45% | 94th |
| Height | 150 in | 94.1 in | +59% | 99th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared Allis Chalmers tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers 440 | 218 hp | 20,230 lb | 1973–1977 | Compare → |
| Allis Chalmers 4W-220 | 220 hp | 21,475 lb | 1982–1984 | Compare → |
| Allis Chalmers 8550 | 300 hp | 27,040 lb | 1978–1981 | Compare → |
| Allis Chalmers 4W-305 | 305 hp | 27,100 lb | 1982–1985 | Compare → |
| Allis Chalmers 5050 | 50 hp | 4,410 lb | 1977–1983 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Belarus 1770 | 185 hp | 19,585 lb | — | Compare → |
| CaseIH Magnum 190 | 190 hp | 19,000 lb | — | Compare → |
| Agrinar T-180 | 182.5 hp | — | — | Compare → |
| Ascot Universal A1800A | 180 hp | 21,400 lb | — | Compare → |
| CaseIH Magnum 180 | 180 hp | 19,000 lb | — | Compare → |
Explore
Allis Chalmers siblings
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FAQ
Common questions
When was the Allis Chalmers 7580 in production?
Allis Chalmers 7580 production started in 1977 and ended in 1981.
How much horsepower does the Allis Chalmers 7580 have?
The Allis Chalmers 7580 produces 186.35 hp from its 6-cylinder engine. Engine displacement is 426 ci.
How much does the Allis Chalmers 7580 weigh?
The Allis Chalmers 7580 weighs about 25,000 lb in operating condition.
What transmission is in the Allis Chalmers 7580?
Transmission on the Allis Chalmers 7580 is Partial power shift, with 20 forward speeds.
What hydraulics does the Allis Chalmers 7580 have?
The Allis Chalmers 7580 uses a Closed center hydraulic system.
What are the factory tire sizes for the Allis Chalmers 7580?
The Allis Chalmers 7580 comes with 23.1-30 front tires and 23.1-30 rear tires.
What three-point hitch category does the Allis Chalmers 7580 use?
The Allis Chalmers 7580 has a Category Category 3 three-point hitch.
What maintenance does the Allis Chalmers 7580 require?
Like any tractor, the Allis Chalmers 7580 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.





