8 material differences · fewer than 12
Tractor oneDavid Brown 3800 Selectmatic1968–1971No measured PTO figureTractor twoUZINA TRACTORUL 420 (DT)1974–1981No measured PTO figure
Which should you choose?
Read our verdict on the 3800 Selectmatic and the 420 (DT) → 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 · 4 fields identical or within 5%, which is not counted as material
| Field | 3800 Selectmatic | 420 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 42.0 hp | 41.3 hp | — |
| Engine declared | — | UTB D-115 | — |
| Displacement declared | — | 2.34 L | — |
| Maximum torque declared | 115 lb·ft · 156 N·m | 108 lb·ft · 147 N·m | +6% 3800 Selectmatic |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Pedal-operated, dry and two-stage BORG & BECK double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 8.5 gpm · 32.0 L/min | 4.2 gpm · 16.0 L/min | +100% 3800 Selectmatic |
| Pressure declared | — | 2,973 psi · 205 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,351 lb · 1,520 kg | 3,616 lb · 1,640 kg | +8% 420 (DT) |
| Wheelbase declared | 75.8 in · 1,926 mm | 74.8 in · 1,900 mm | — |
| Length declared | 116.0 in · 2,946 mm | 122.4 in · 3,110 mm | +6% 420 (DT) |
| Width declared | 65.5 in · 1,664 mm | 68.1 in · 1,730 mm | — |
| Ground clearance declared | 17.5 in · 445 mm | 20.9 in · 530 mm | +19% 420 (DT) |
| Turning radius, braked declared | 9.8 ft · 3.00 m | 10.6 ft · 3.22 m | +7% 420 (DT) |
| Fuel tank declared | 38.5 qt · 36.4 L | 57.1 qt · 54.0 L | +48% 420 (DT) |
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 3800 Selectmatic sources
- Source: Traktorenlexikon, “David Brown 3800”
UZINA TRACTORUL 420 (DT) sources
- Source: Traktorenlexikon, “UTB 420 (DT)”
- Source: Traktorenlexikon, “UTB U 445”