8 material differences · fewer than 12
Tractor oneDavid Brown 850 Implematic1960–1965No measured PTO figureTractor twoInternational Harvester D-4301956–1962No measured PTO figure
Which should you choose?
Read our verdict on the 850 Implematic and the D-430 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
8 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | 850 Implematic | D-430 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 35.0 hp | 29.6 hp | +18% 850 Implematic |
| Engine declared | DAVID BROWN AD 4/36 A-106 | INTERNATIONAL-HARVESTER DD-132 | differs |
| Displacement declared | 2.52 L | 2.18 L | +16% 850 Implematic |
| Maximum torque declared | 110 lb·ft · 149 N·m | 90 lb·ft · 122 N·m | +22% 850 Implematic |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 12.4 mph · 20 km/h | +25% 850 Implematic |
| Clutch declared | Pedal-operated dry BORG & BECK single-plate clutch type 10 inch | Foot-operated dry single-plate clutch from Fichtel & Sachs | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 6.0 gpm · 22.7 L/min | 4.1 gpm · 15.5 L/min | +46% 850 Implematic |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,704 lb · 1,680 kg | 3,660 lb · 1,660 kg | — |
| Maximum permissible mass declared | — | 4,409 lb · 2,000 kg | — |
| Wheelbase declared | 75.2 in · 1,911 mm | 74.0 in · 1,880 mm | — |
| Length declared | 114.0 in · 2,896 mm | 115.4 in · 2,930 mm | — |
| Width declared | 62.8 in · 1,594 mm | 64.6 in · 1,640 mm | — |
| Ground clearance declared | 15.5 in · 394 mm | 15.2 in · 385 mm | — |
| Turning radius, braked declared | 7.9 ft · 2.41 m | 9.2 ft · 2.80 m | +16% D-430 |
| Fuel tank declared | 42.1 qt · 39.8 L | 31.7–58.1 qt · 30.0–55.0 L | differs |
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 850 Implematic sources
- Source: Traktorenlexikon, “David Brown 850”
International Harvester D-430 sources
- Source: Traktorenlexikon, “McCormick D-430 Farmall”
- Source: Traktorenlexikon, “McCormick DGD 4”