Tractor · 1976Unverified
Allis Chalmers 7580
Allis Chalmers 7580 — Four-wheel Drive (4WD) tractor · 186 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
186 hp
Max power
114.6 kW
Weight
23100 to 23510 pounds
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Four-wheel Drive (4WD) tractorReference
Built in West Allis, Wisconsin, USAReference
Total built1610Reference
Original price$63,084Reference
Four-wheel driveReference
Steeringhydrostatic powerReference
Hydraulic wet discs brakesReference
Acousta cab standard with heat and air-conditioning. Optional radio and 8 track tape player.Reference
Engine
Allis Chalmers 7.0L 6-cyl dieselReference
Fuel tank643.5 LReference
Drawbar (claimed)114.1 kWReference
Drawbar (tested)114.6 kWReference
Allis Chalmers 3750 Mark IIReference
turbocharged intercooled dieselReference
6-cylinderReference
liquid-cooled inlineReference
Displacement7.0 LReference
Bore/Stroke108 x 127 mmReference
Air cleanerdryReference
Compression16:1Reference
Rated RPM2550Reference
Idle RPM775-2750Reference
Firing order1-5-3-6-2-4Reference
Starter volts12Reference
Oil capacity23.7 LReference
Coolant capacity36.0 LReference
Power at rated engine speed139.0 kWReference
Max power114.6 kWReference
Transmission
20-speed partial power shiftReference
TransmissionPower DirectorReference
Typepartial power shiftReference
Gears20 forward and 4 reverseReference
PTO & Hydraulics
PTO (claimed)138.7 kWReference
PTO (tested)139.0 kWReference
Typeclosed centerReference
Valves3 to 4Reference
Pump flow87.1 lpmReference
Total flow283.5 lpmReference
Rear TypeIIIReference
Rear PTOindependentReference
Rear PTO Type1000Reference
Dimensions
Wheelbase320 cmReference
Weight23100 to 23510 poundsReference
Front tire20.8x38Reference
Rear tire20.8x38Reference
Ag front20.8x38Reference
Ag rear20.8x38Reference
Ag front23.1x30Reference
Ag front24.5x32Reference
Ag front30.5x32Reference
Ag front20.8x34Reference
Ag front18.4x38Reference
Ag rear23.1x30Reference
Ag rear24.5x32Reference
Ag rear30.5x32Reference
Ag rear20.8x34Reference
Ag rear18.4x38Reference
Length571 cmReference
Width242 cmReference
Width303 cmReference
Height (hood)216 cmReference
Height (exhaust)381 cmReference
Ground clearance43 cmReference
Front tread157 to 312 cmReference
Rear tread157 to 312 cmReference
Shipping10478 kgReference
Operating10664 kgReference
Ballasted11340 kgReference
7580 Serial Numbers
Location:Front frame, rear left sideReference
19761001Reference
19771288Reference
19781605Reference
19792218Reference
19802486Reference
19812717Reference
Final3018Reference
FAQ: How to read a serial number table.Reference
Electrical
Charging systemalternatorReference
Batteries4Reference
Battery volts12Reference
Test results
Diesel 20-speed 4WDOctober 26 - November 8, 1976Link: Nebraska Tractor Test 1229 fileReference
PTO performanceReference
Fuel use47.7 l/hourReference
Drawbar performanceReference
Gear 4SL used for power test.Reference
Max pull10573 kgReference
Gear 1SH used for pull test.Reference
Speeds
With 20.8x38 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.