The Allis-Chalmers 7020 was a 7000 Series six-cylinder diesel row-crop tractor rated at about 146 horsepower. It used power steering, wet-disc brakes, independent PTO, and a partial power-shift transmission.
The 7020 was built from 1978 through 1981 as a two-wheel-drive tractor with a standard Acousta cab. Air conditioning was available as an option.
Serial number locations: The tractor serial number is stamped above the PTO shield.
The table below shows the beginning tractor serial number for each Model 7020 year:
1978-1979
| Model 7020 year |
Beginning serial number |
| 1978 |
1,317 |
| 1979 |
2,732 |
1980-1980
| Model 7020 year |
Beginning serial number |
| 1980 |
3,842 |
1981-1981
| Model 7020 year |
Beginning serial number |
| 1981 |
4,710 |
1978-1979
| Model 7020 year |
Beginning serial number |
| 1978 |
1,317 |
| 1979 |
2,732 |
1980-1981
| Model 7020 year |
Beginning serial number |
| 1980 |
3,842 |
| 1981 |
4,710 |
1978-1981
| Model 7020 year |
Beginning serial number |
| 1978 |
1,317 |
| 1979 |
2,732 |
| 1980 |
3,842 |
| 1981 |
4,710 |
Total production: Unknown.
