Allis Chalmers

Allis Chalmers 7580

The Allis Chalmers 7580 is a four-wheel drive (4WD) tractor produced from 1976 to 1981. Built in West Allis, Wisconsin, USA, a total of 1610 units were made. It features a powerful 7.0L 6-cylinder turbocharged intercooled diesel engine, delivering an estimated 206.7 hp engine power. The tractor includes a 20-speed partial power shift transmission with Power Director, hydrostatic power steering, hydraulic wet disc brakes, and an Acousta cab with heat and air-conditioning. It has a closed center hydraulic system with 3 to 4 valves and a pump flow of 23 gpm. The tractor's dimensions include a 126 inch wheelbase, 225 inch length, and weighs approximately 23,100 to 23,510 lbs. It is equipped with various tire options and an independent 1000 rpm rear PTO. The 7580 is known for its robust build and performance in heavy-duty farming applications.

Power206 hp[P]

Founded1976 - 1981

Model7580

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Technical Specifications

Detailed specifications and technical data for Allis Chalmers 7580

Power

PTO (tested)	186.35 hp (139.0 kW)
PTO (claimed)	186 hp (138.7 kW)
Drawbar (tested)	153.70 hp (114.6 kW)
Drawbar (claimed)	153 hp (114.1 kW)

Tires

Ag rear	20.8x38, 23.1x30
Ag front	20.8x38, 23.1x30
Other rear	24.5x32, 30.5x32, 20.8x34, 18.4x38
Other front	24.5x32, 30.5x32, 20.8x34, 18.4x38

Engine

Type	turbocharged intercooled diesel
Model	Allis Chalmers 3750 Mark II
Cooling	liquid-cooled inline
Idle RPM	775-2750
Cylinders	6-cylinder
Fuel tank	170 gal (643.5 L)
Rated RPM	2550
Air cleaner	dry
Bore/Stroke	4.25x5.00 inches (108 x 127 mm)
Displacement	426 ci (7.0 L)
Firing order	1-5-3-6-2-4
Oil capacity	25 qts (23.7 L)
Starter volts	12
Coolant capacity	38 qts (36.0 L)
Compression ratio	16:1

Weight

Shipping	23,100 lbs (10478 kg)
Ballasted	25,000 lbs (11340 kg)
Operating	23,510 lbs (10664 kg)

Dimensions

Width	95.5 inches (242 cm)
Length	225 inches (571 cm)
Wheelbase	126 inches (320 cm)
Rear tread	62 to 123 inches (157 to 312 cm)
Front tread	62 to 123 inches (157 to 312 cm)
Height (hood)	85.3 inches (216 cm)
Ground clearance	17 inches (43 cm)
Height (exhaust)	150 inches (381 cm)
Width (long axle)	119.5 inches (303 cm)

Electrical

Batteries	4
Battery volts	12
Charging system	alternator

Hydraulics

Type	closed center
Valves	3 to 4
Pump flow	23 gpm (87.1 lpm)
Total flow	74.9 gpm (283.5 lpm)

Mechanical

Cab	Acousta cab standard with heat and air-conditioning. Optional radio and 8 track tape player.
Drive	Four-wheel drive
Brakes	Hydraulic wet discs brakes
Steering	hydrostatic power

Production