11 material differences · fewer than 12
Tractor oneBührer PF-21 Super (A)1968–1974No measured PTO figureTractor twoDeutz (KHD) F4L 514/51956–1966No measured PTO figure
Which should you choose?
Read our verdict on the PF-21 Super (A) and the F4L 514/5 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | PF-21 Super (A) | F4L 514/5 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 66.1 hp | 63.8 hp | — |
| Engine declared | FORD (GB) 2.514 E | KHD F4L 514 | differs |
| Displacement declared | 4.18 L | 5.32 L | +27% F4L 514/5 |
| Maximum torque declared | 183 lb·ft · 248 N·m | 210 lb·ft · 285 N·m | +15% F4L 514/5 |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6 mph · 30.0 km/h | +20% F4L 514/5 |
| Clutch declared | Pedal-operated dry Buhrer double disc clutch between gearbox and group transmission | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.2 gpm · 19.5 L/min | — | — |
| Rear PTO speeds declared | 540/770 rpm | 588 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,357 lb · 2,430 kg | 6,669 lb · 3,025 kg | +24% F4L 514/5 |
| Maximum permissible mass declared | — | 9,921 lb · 4,500 kg | — |
| Wheelbase declared | 84.3 in · 2,140 mm | 96.1 in · 2,440 mm | +14% F4L 514/5 |
| Length declared | 129.5 in · 3,290 mm | 153.5 in · 3,900 mm | +19% F4L 514/5 |
| Width declared | 69.3 in · 1,760 mm | 77.2 in · 1,962 mm | +11% F4L 514/5 |
| Ground clearance declared | 15.0 in · 380 mm | 18.5 in · 470 mm | +24% F4L 514/5 |
| Turning radius, braked declared | 10.9 ft · 3.33 m | 13.1 ft · 4.00 m | +20% F4L 514/5 |
| Fuel tank declared | — | 89.8 qt · 85 L | — |
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.
Bührer PF-21 Super (A) sources
- Source: Traktorenlexikon, “Bührer PF 21 Super(A)”
Deutz (KHD) F4L 514/5 sources
- Source: Traktorenlexikon, “Deutz F4L 514/5”
- Source: Traktorenlexikon, “Fahr D 55 L”