Bührer RP-21 Super (A) vs J.I. Case 831
9 material differences · fewer than 12
Which should you choose?
Read our verdict on the RP-21 Super (A) and the 831 → 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 · 1 fields identical or within 5%, which is not counted as material
| Field | RP-21 Super (A) | 831 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 71 hp | 66.0 hp | +8% RP-21 Super (A) |
| Engine declared | Perkins A 4.248 | — | — |
| Displacement declared | 4.07 L | — | — |
| Maximum torque declared | 212 lb·ft · 287 N·m | — | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6 mph · 30 km/h | +20% 831 |
| Hydraulics & hitch | |||
| Pump flow declared | 5.2 gpm · 19.5 L/min | 15.5 gpm · 58.7 L/min | +201% 831 |
| Pressure declared | 2,845 psi · 196 bar | — | — |
| Three-point lift at ends declared | 4,850 lb · 2,200 kg | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,807 lb · 2,634 kg | 7,145 lb · 3,241 kg | +23% 831 |
| Wheelbase declared | 84.5 in · 2,147 mm | 101.7 in · 2,584 mm | +20% 831 |
| Length declared | 132.3 in · 3,360 mm | 143.4 in · 3,642 mm | +8% 831 |
| Width declared | 72.8 in · 1,850 mm | 85.2 in · 2,165 mm | +17% 831 |
| Height declared | 67.7 in · 1,720 mm | 66.0 in · 1,676 mm | — |
| Ground clearance declared | 16.1 in · 410 mm | 20.0 in · 508 mm | +24% 831 |
| Turning radius, braked declared | 10.6 ft · 3.23 m | 11.9 ft · 3.63 m | +12% 831 |
| Fuel tank declared | — | 69.2 qt · 65.5 L | — |
Bührer RP-21 Super (A) sources
Source
- Source: Traktorenlexikon, “Bührer RP 21 Super (A)”
- Source: Traktorenlexikon, “Massey Ferguson MF 178”
J.I. Case 831 sources
Source
- Source: Traktorenlexikon, “Case 831”