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Years in Production / 1978–1981
Allis-Chalmers
7020
Explore the specifications, hardware, and original references for the Allis-Chalmers 7020.
146hp
Source index power
2WD Only
Drive
1978–1981
Production years
Allis-Chalmers
Manufacturer
7020 / 01
At a glance
Production
Row-Crop tractor
Built in West Allis, Wisconsin, USA
- Manufacturer
- Allis Chalmers
- Original Price
- $39,378
Mechanical
Two-wheel drive
Differential power wet disc brakes
Acousta cab standard with heat. Air-conditioning optional. Radio and eight-track player optional.
- Final Drives
- inboard planetary
- Steering
- hydrostatic power
Hydraulics
- Type
- closed center
- Valves
- 2 or 3
- Pump Flow
- 22 gpm83.3 lpm
- Total Flow
- 45 gpm170.3 lpm
- Steering Flow
- 9.5 gpm36.0 lpm
Hitch
- Rear Type
- 3/2
- Rear Lift At24610mm
- 6,680 lbs3030 kg
Pto
- Rear Pto
- independent
- Rear Type
- 540/1000
7020 / 02
Under the hood
Engine Detail
Allis Chalmers 649I
intercooled turbocharged diesel
6-cylinder
liquid-cooled Inline
- Displacement
- 301 ci4.9 L
- Bore Stroke
- 3.875x4.25 inches98 x 108 mm
- Power
- 146 hp108.9 kW
- Air Cleaner
- dry with pre-cleaner
- Compression Ratio
- 16.25:1
- Rated Rpm
- 2300
- Firing Order
- 1-5-3-6-2-4
- Starter Volts
- 12
- Oil Capacity
- 20 qts18.9 L
- Coolant Capacity
- 26 qts24.6 L
- Cylinders
- 6
- Cooling
- liquid-cooled Inline
Engine Options
Allis Chalmers 4.9L 6-cyl diesel
- Fuel Tank
- 51 gal193.0 L
- Fuel Tank
- 13 gal (optional auxiliary tank)49.2 L
7020 / 03
Gears & controls
Transmission (Option 1)
Four gears in two ranges (slow/fast) with two-range power shift. Power shift controlled by foot buttons.
- Transmission
- Power Director
- Transmission Type
- partial power shift
- Gears
- 16 forward and 4 reverse
- Oil Capacity
- 29.6 qts28.0 L
Transmission (Option 2)
Five gears in two ranges (slow/fast) with two-range power shift. Power shift controlled by foot buttons.
- Transmission
- Power Director
- Transmission Type
- partial power shift
- Gears
- 20 forward and 4 reverse
- Oil Capacity
- 29.6 qts28.0 L
Transmission (Option 3)
Six gears in two ranges. Power shift between gears in range.
- Transmission
- Power Shift
- Transmission Type
- partial power shift
- Gears
- 12 forward and 2 reverse
- Oil Capacity
- 29.6 qts28.0 L
7020 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 163 in414 cm
- Width
- 92.6 in235 cm
- Height
- 87 in220 cm
- Wheelbase
- 106 in269 cm
Dimensions And Tires
- Wheelbase
- 106 inches269 cm
- Weight
- 10820 to 11700 pounds
- Front Tire
- 11.00x16
- Rear Tire
- 18.4x38
Tires And Tracks
- Front Ag
- 11.00x16
- Front Ag
- 10.00x16
- Front Ag
- 14Lx16
- Rear Ag
- 18.4x38
- Rear Ag
- 24.5x32
- Rear Ag
- 30.5x32
- Rear Ag
- 20.8x34
- Rear Ag
- 15.5x38
- Rear Ag
- 16.9x38
- Rear Ag
- 20.8x38
7020 / 05
Tractor Photos
See it in action
Videos
Watch Allis-Chalmers 7020 videos from their original YouTube creators.
7020 / 07
Tests (NTTL)
Nebraska Tractor Test 1259
Diesel Power shift 2WDOctober 10 - 21, 1977
PTO performance
Drawbar performance
Gear 1F used for power test.
Gear 2S used for pull test.
- Id
- 1259
- Power At Rated Engine Speed
- 123.79 hp92.3 kW
- Fuel Use
- 7.8 gal/hour29.5 l/hour
- Fuel Use
- 7.7 gal/hour29.1 l/hour
- Power At Rated Pto Speed
- 123.50 hp92.1 kW
- Max Power
- 101.89 hp76.0 kW
- Max Pull
- 12,001 lbs5443 kg
Nebraska Tractor Test 1260
Diesel Power Director 2WDOctober 10 - 21, 1977
PTO performance
Drawbar performance
Gear 4SL used for power test.
Gear 2SL used for pull test.
- Id
- 1260
- Power At Rated Engine Speed
- 123.85 hp92.4 kW
- Fuel Use
- 7.8 gal/hour29.5 l/hour
- Power At Rated Pto Speed
- 125.51 hp93.6 kW
- Max Power
- 102.09 hp76.1 kW
- Max Pull
- 11,964 lbs5426 kg