Allis Chalmers 7580
Power
206 hp[P] hp
Production
1976-1981
Engine
Turbocharged intercooled diesel, 6-cylinder
Transmission
Power Director
Drive
4WD
From the same series:
Introduction
Allis Chalmers 7580, Four-Wheel Drive Tractor
The Allis Chalmers 7580 is a heavy-duty four-wheel-drive tractor produced between 1976 and 1981 in West Allis, Wisconsin. Designed for high-output agricultural tasks, this model represents a significant entry in the high-horsepower segment of the late 1970s.
Engine Specifications
The tractor is powered by the Allis Chalmers 3750 Mark II, a 7.0-liter, 6-cylinder turbocharged and intercooled diesel engine. It features a compression ratio of 16:1 and a firing order of 1-5-3-6-2-4. The engine is liquid-cooled and designed to operate at a rated speed of 2550 RPM.
Transmission and Drivetrain
The 7580 is equipped with a Power Director transmission, utilizing a partial power shift system that provides 20 forward and 4 reverse gears. This drivetrain configuration is designed to handle the 206 horsepower output, delivering power to all four wheels for increased traction in field operations.
Hydraulics and PTO
The hydraulic system is of the closed-center type, providing a total flow of 74.9 gpm (283.5 lpm) to support heavy implement requirements, with 3 to 4 valves available. The rear independent PTO is rated at 1000 RPM, standardizing connectivity for high-demand agricultural implements.
Operator Environment and Dimensions
The tractor features the Acousta cab as standard equipment, which includes integrated heating and air conditioning. With a wheelbase of 126 inches (320 cm) and a total length of 225 inches (571 cm), the machine is engineered for stability. Steering is managed via a hydrostatic power system, paired with hydraulic wet disc brakes.
Conclusion
With 1,610 units produced, the Allis Chalmers 7580 serves as a robust platform for large-scale field work, combining substantial engine power with a sophisticated closed-center hydraulic system and a comfortable operator environment.
Production Information of Allis Chalmers, 7580
- Four-wheel Drive (4WD) tractor
- Built in West Allis, Wisconsin, USA
| Manufacturer | Allis Chalmers |
|---|---|
| Original price | $63,084 |
| Total built | 1610 |
Dimension and Tires Information of Allis Chalmers, 7580
| Ground clearance | 17 inches [43 cm] |
|---|---|
| Wheelbase | 126 inches [320 cm] |
| Height (hood) | 85.3 inches [216 cm] |
| Height (hood)(optional) | 119.5 inches (long axle) [303 cm] |
| Length | 225 inches [571 cm] |
| Front tread | 62 to 123 inches [157 to 312 cm] |
| Height (exhaust) | 150 inches [381 cm] |
| Width | 95.5 inches [242 cm] |
| Rear tread | 62 to 123 inches [157 to 312 cm] |
| Ag front | 20.8x38 |
|---|---|
| Ag front(optional) | 30.5x32 |
| Ag front(optional) | 24.5x32 |
| Ag rear | 20.8x38 |
| Ag rear | 23.1x30 |
| Ag rear(optional) | 20.8x34 |
| Ag front | 23.1x30 |
| Ag front(optional) | 18.4x38 |
| Ag front(optional) | 30.5x32 |
| Ag front(optional) | 24.5x32 |
| Ag front(optional) | 18.4x38 |
Engine Specifications of Allis Chalmers, 7580
- Allis Chalmers 3750 Mark II
- Liquid-cooled inline
- 6-cylinder
- Turbocharged intercooled diesel
| Compression | 16:1 |
|---|---|
| Firing order | 1-5-3-6-2-4 |
| Displacement | 426 ci [7.0 L] |
| Bore/Stroke | 4.25x5.00 inches [108 x 127 mm] |
| Air cleaner | Dry |
| Idle RPM | 775-2750 |
| Rated RPM | 2550 |
| Coolant capacity | 38 qts [36.0 L] |
| Oil capacity | 25 qts [23.7 L] |
| Starter volts | 12 |
Transmission Information of Allis Chalmers, 7580
Transmission variants 1
| Transmission | Power Director |
|---|---|
| Type | Partial power shift |
| Gears | 20 forward and 4 reverse |
Mechanical Specs of Allis Chalmers, 7580
- Four-wheel drive
- Acousta cab standard with heat and air-conditioning. Optional radio and 8 track tape player.
- Hydraulic wet discs brakes
| Steering | Hydrostatic power |
|---|
Power Information of Allis Chalmers, 7580
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
Hydraulics Specifications of Allis Chalmers, 7580
| Type | Closed center |
|---|---|
| Total flow | 74.9 gpm [283.5 lpm] |
| Valves | 3 to 4 |
| Pump flow | 23 gpm [87.1 lpm] |
Three-Point Hitch of Allis Chalmers, 7580
| Rear Type | III |
|---|
Electrical System of Allis Chalmers, 7580
| Charging system | Alternator |
|---|---|
| Batteries | 4 |
| Battery volts | 12 |
Where it sits
With 206 hp[P] HP, the Allis Chalmers 7580 sits just below 440 (218 HP) in Allis Chalmers's range. Its power puts it in the 90th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers 7580 have?
The Allis Chalmers 7580 delivers 206 hp[P] HP.
What years was the Allis Chalmers 7580 produced?
The Allis Chalmers 7580 was produced in 1976-1981.
What engine does the Allis Chalmers 7580 have?
The Allis Chalmers 7580 is powered by a Turbocharged intercooled diesel, 6-cylinder engine.
What transmission does the Allis Chalmers 7580 use?
The Allis Chalmers 7580 uses a Power Director transmission.
Is the Allis Chalmers 7580 4WD?
The Allis Chalmers 7580 is available in 4WD.