9 material differences · fewer than 12
Tractor oneDavid Brown 880 Implematic1961–1965No measured PTO figureTractor twoJohn Deere 10201965–1975No measured PTO figure
Which should you choose?
Read our verdict on the 880 Implematic and the 1020 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 880 Implematic | 1020 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 42.5 hp | 43.4 hp | — |
| Engine declared | DAVID BROWN AD 4/40 | John Deere M 4 FL 4 or 3.164 DL-04 | differs |
| Transmission | |||
| Top speed declared | 12.4–16.2 mph · 20–26 km/h | 12.4–15.5 mph · 20–25 km/h | — |
| Clutch declared | Pedal operated dry Borg & Beck single disc clutch | Pedal operated two stage and dry Fichtel & Sachs double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 6.0 gpm · 22.7 L/min | — | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm / 1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,001 lb · 1,815 kg | 4,938 lb · 2,240 kg | +23% 1020 |
| Maximum permissible mass declared | — | 7,716 lb · 3,500 kg | — |
| Wheelbase declared | 75.2 in · 1,911 mm | 80.7 in · 2,050 mm | +7% 1020 |
| Length declared | 115.0 in · 2,921 mm | 135.0 in · 3,430 mm | +17% 1020 |
| Width declared | 64.0 in · 1,626 mm | 63.0–86.6 in · 1,600–2,200 mm | differs |
| Ground clearance declared | 19.5 in · 495 mm | 20.5 in · 521 mm | — |
| Turning radius, braked declared | 10.3 ft · 3.15 m | 9.4 ft · 2.85 m | +11% 880 Implematic |
| Fuel tank declared | 55.3 qt · 52.3 L | 66.0 qt · 62.5 L | +20% 1020 |
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.
David Brown 880 Implematic sources
- Source: Traktorenlexikon, “David Brown 880 Implematic”
John Deere 1020 sources
- Source: Traktorenlexikon, “John Deere 1020”