12 material differences
Tractor oneALLIS-CHALMERS 1851970–1981No measured PTO figureTractor twoJohn Deere 30201964–1972No measured PTO figure
Which should you choose?
Read our verdict on the 185 and the 3020 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
12 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | 185 | 3020 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 74.0 hp | 74.0 hp | — |
| Engine declared | ALLIS-CHALMERS D-2800 | John Deere 13 E | differs |
| Displacement declared | 4.93 L | 4.43 L | +11% 185 |
| Maximum torque declared | — | 186 lb·ft · 252 N·m | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 12.4–18.6 mph · 20–30 km/h | differs |
| Clutch declared | — | Pedal-operated dry single-disc clutch | — |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | Closed centre | differs |
| Pump flow declared | 20.0 gpm · 75.7 L/min | 18.0 gpm · 68.0 L/min | +11% 185 |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 8,699 lb · 3,946 kg | 7,553 lb · 3,426 kg | +15% 185 |
| Maximum permissible mass declared | — | 11,067 lb · 5,020 kg | — |
| Wheelbase declared | 99.2 in · 2,519 mm | 90.0 in · 2,286 mm | +10% 185 |
| Length declared | 158.0 in · 4,013 mm | 138.5 in · 3,518 mm | +14% 185 |
| Width declared | 76.5 in · 1,943 mm | 89.6 in · 2,276 mm | +17% 3020 |
| Ground clearance declared | 20.5 in · 521 mm | 15.6 in · 395 mm | +32% 185 |
| Turning radius, braked declared | 10.2 ft · 3.12 m | — | — |
| Fuel tank declared | 98.3 qt · 93.0 L | 116.0 qt · 109.8 L | +18% 3020 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
ALLIS-CHALMERS 185 sources
Source
- Source: Traktorenlexikon, “Allis-Chalmers 185”
- Source: Traktorenlexikon, “Allis-Chalmers 180”
John Deere 3020 sources
Source
- Source: Traktorenlexikon, “John Deere 3020”