Allis Chalmers WD Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures

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About Allis Chalmers 7040

The 1975–1977 Allis Chalmers 7040 was a 2WD row-crop tractor made in West Allis, Wisconsin. The Allis Chalmers 7040 features a 7.0 L (426.0 cu*in) diesel engine with six cylinders and two transmissions: a partial power shift gearbox with 20 forward and four reverse gears or one with two reverse and 12 forward gears.

The tractor was an Allis Chalmers 7040 row-crop tractor powered by an Allis Chalmers 3500 Mark II engine. It’s a 7.0 L 6,980 cm 2 (426.0 cu*in) six-cylinder turbocharged diesel engine with a bore diameter of 108.0 millimetres (4.25 inches) and a piston stroke of 127.0 millimetres (5 inches). 16.0:1 is the compression ratio. The engine developed 153.1 PS (112.6 kW; 151.0 HP) of output power at 2300 rpm.

The Allis Chalmers 7040 Has Hydraulic Differential Brakes With Wet Discs, Hydrostatic Power steering, An Acosta Cab, And a 193.0 Liter (51 US gal; 42.5 Imp. gal) Fuel tank.

Allis Chalmers 7040 Price

Allis Chalmers 7040

Allis Chalmers 7040 Price is $24,550.

Allis Chalmers 7040 Horsepower

Allis Chalmers 7040 Horsepower is 153.1 PS (112.6 kW; 151.0 HP) at 2,300 rpm.

Allis Chalmers 7040 Weight

Allis Chalmers 7040 Weight is 5,310 kg (11,707 lbs).

Allis Chalmers 7040 Serial Number

Location: Above PTO shield
1975: 1303
1976: 4089
1977: 6839

Allis Chalmers 7040 Specs

General Specifications

Model Allis Chalmers 7040
Length 4,400 mm (173.2 in)
Width 2,420 mm (95.3 in)
Height (exhaust) 2,940 mm (115.7 in)
Wheel base 2,690 mm (105.9 in)
Weight 5,310 kg (11,707 lbs)
Fuel tank capacity 193.0 liters (51 US gal.; 42.5 Imp. gal)
Battery 12V
Cabin type Acousta-Cab


Engine model Allis Chalmers 3500 Mark II
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Diesel
Displacement 7.0 L, 6,980 cm2, (426.0 cu·in)
Bore and stroke 108.0 mm X 127.0 mm (4.25 in X 5 in)
Compression ratio 16.0:1
Horsepower 153.1 PS (112.6 kW; 151.0 HP) at 2,300 rpm
Starter Electric
Oil capacity: 18.0 L (19 US. qt, 15.8 Imp. qt.)
Coolant capacity: 29.3 L (31 US. qt, 25.8 Imp. qt.)

Transmission and chassis

Chassis 4×2 2WD
Steering type Hydrostatic power
Brakes Differential hydraulic wet discs
Differential lock Power (standard)
Transmission model Power Director
Transmission type Partial power shift
Gears 20 forward and 4 reverse
Speed Forward: 30.2 kmh (18.8 mph) Reverse: 13.5 (8.4 mph)
Transmission model Power Shift
Transmission type Partial power shift
Gears 12 forward and 2 reverse
Speed Forward: 29.6 kmh (18.4 mph) Reverse: 12.9 (8 mph)


Front tires Ag: 11.00-16
Rear tires Ag: 18.4-38

Three-Point Hitch

Category III/II
Control type
Lift capacity (at ends)

PTO (Power take-off shaft)

Rear PTO type Independent
Rear PTO speed 540/1,000 or 1,000 rpm (optional)

Hydraulic system

Hydraulic type Closed center
Hydraulic capacity 91.2 liters (24.1 US gal, 20.1 Imp. gal)
Valves 2 or 3
Pump flow 22.0 gpm (83.3 lpm)
Total flow 45.0 gpm (170.3 lpm)

Allis Chalmers 7040 Review

The Allis-Chalmers 7040 tractor was a favored option for small to medium-sized farms. It was recognized for being dependable, using fuel efficiently, and being easy to operate.

For more details check out youtube video


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