Tractor · 1975Unverified
Allis Chalmers 7040
Allis Chalmers 7040 — Row-Crop tractor · 136 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
136 hp
Max power
85.2 kW
Weight
5307 kg
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Row-Crop tractorReference
Built in West Allis, Wisconsin, USAReference
Original price$24,550Reference
Two-wheel driveReference
Differential lockpower standardReference
Steeringhydrostatic powerReference
Differential hydraulic wet disc brakesReference
Acousta cab standard with heater, air-conditioning optional. Optional radio and 8-track tape player. Four-post ROPS canopy optional.Reference
Engine
Allis Chalmers 7.0L 6-cyl dieselReference
Drawbar (claimed)87.2 kWReference
Drawbar (tested)85.3 kWReference
Allis Chalmers 3500 Mark IIReference
turbocharged dieselReference
6-cylinderReference
liquid-cooledReference
Displacement7.0 LReference
Bore/Stroke108 x 127 mmReference
Pre-heatingetherReference
Pre-heatingcoolant heater (optional)Reference
Compression16:1Reference
Rated RPM2300Reference
Starter volts12Reference
Oil capacity18.0 LReference
Coolant capacity29.3 LReference
Power at rated engine speed101.8 kWReference
Max power85.2 kWReference
Power at rated engine speed101.6 kWReference
Max power85.3 kWReference
Transmission
20-speed partial power shiftReference
12-speed partial power shiftReference
TransmissionPower DirectorReference
Typepartial power shiftReference
Gears20 forward and 4 reverseReference
Five gears, plus reverse, with two ranges (fast/slow) and high-low power shift. Floor-mounted shifter selects gear, side-console lever selects range. Foot-operated buttons control the Power Director power shift.Reference
TransmissionPower ShiftReference
Gears12 forward and 2 reverseReference
Six gears in two ranges (slow/fast). Clutchless power shift between gears.Reference
PTO & Hydraulics
PTO (claimed)101.4 kWReference
PTO (tested)101.8 kWReference
Hydraulic system91.2 LReference
Typeclosed centerReference
Capacity91.2 LReference
Valves2 or 3Reference
Pump flow83.3 lpmReference
Total flow170.3 lpmReference
Rear TypeIII/IIReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Rear PTO Type1000 (optional)Reference
Power at rated PTO speed101.6 kWReference
Power at rated PTO speed101.5 kWReference
Capacities
Fuel193.0 LReference
Fuel49.2 LReference
Dimensions
Wheelbase269 cmReference
Weight5307 kgReference
Front tire11.00-16Reference
Rear tire18.4-38Reference
Ag front11.00-16Reference
Ag rear18.4-38Reference
Ag front10.00-16Reference
Ag front14L-16.1Reference
Ag rear20.8-38Reference
Ag rear23.1-34Reference
Ag rear24.5-32Reference
Ag rear30.5-32Reference
Ag rear15.5-38Reference
Ag rear16.9-38Reference
Length440 cmReference
Width242 cmReference
Width303 cmReference
Operating weight5307 kgReference
Ballasted weight7883 kgReference
Clearance (front axle)56 cmReference
Clearance (rear axle)71 cmReference
Front tread157 to 223 cmReference
Rear tread162 to 231 cmReference
Steering wheel220 cmReference
Allis Chalmers 7040 attachments
front-end loaderReference
7040 Serial Numbers
Location:Above PTO shieldReference
19751303Reference
19764089Reference
19776839Reference
FAQ: How to read a serial number table.Reference
Electrical
Charging systemalternatorReference
Battery volts12Reference
Allis Chalmers 7040 Height
Hood172 cmReference
Exhaust294 cmReference
Test results
NTTL 1166: diesel Power Director 2WDReference
NTTL 1196: diesel power shift 2WDReference
Diesel Power Director 2WDOctober 29 - November 7, 1974Link: Nebraska Tractor Test 1166 fileReference
PTO performanceReference
Fuel use34.1 l/hourReference
Drawbar performanceReference
Fuel use33.3 l/hourReference
Gear 4SL used for power test.Reference
Max pull6177 kgReference
Gear 2SL used for pull test.Reference
Diesel power shift 2WDNovember 3 - 20, 1975Link: Nebraska Tractor Test 1196 fileReference
Fuel use33.7 l/hourReference
Gear 1H used for power test.Reference
Max pull6144 kgReference
Gear 2L used for pull test.Reference
Speeds
With 18.4x38 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.