14 material differences
Tractor oneJohn Deere 5101964–1969No measured PTO figureTractor twoMassey Ferguson MF 139 (A)1974–1979No measured PTO figure
Which should you choose?
Read our verdict on the 510 and the MF 139 (A) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
14 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | 510 | MF 139 (A) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 39.4 hp | 41.4 hp | — |
| Engine declared | John Deere 152 D 22 L | Eicher EDK 3-4 | differs |
| Displacement declared | 2.49 L | 2.94 L | +18% MF 139 (A) |
| Maximum torque declared | 101 lb·ft · 137 N·m | 114 lb·ft · 155 N·m | +13% MF 139 (A) |
| Transmission | |||
| Top speed declared | 12.4–15.5 mph · 20–25 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | Two-stage, pedal-operated, dry Fichtel & Sachs double clutch | Pedal operated dry double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 4.1 gpm · 15.6 L/min | 7.9 gpm · 30.0 L/min | +92% MF 139 (A) |
| Pressure declared | 2,190 psi · 151 bar | — | — |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,572 lb · 2,074 kg | 3,428 lb · 1,555 kg | +33% 510 |
| Maximum permissible mass declared | 7,319 lb · 3,320 kg | 5,512 lb · 2,500 kg | +33% 510 |
| Wheelbase declared | 81.6 in · 2,072 mm | 77.0 in · 1,955 mm | +6% 510 |
| Length declared | 133.9 in · 3,400 mm | 124.0 in · 3,150 mm | +8% 510 |
| Width declared | 62.2 in · 1,580 mm | 37.4 in · 950 mm | +66% 510 |
| Ground clearance declared | 17.5 in · 445 mm | 11.0 in · 280 mm | +59% 510 |
| Turning radius, braked declared | 10.0 ft · 3.05 m | 8.5 ft · 2.60 m | +17% 510 |
| Fuel tank declared | 74.0 qt · 70 L | 60.2 qt · 57.0 L | +23% 510 |
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.
John Deere 510 sources
Source
- Source: Traktorenlexikon, “John Deere 510”
Massey Ferguson MF 139 (A) sources
Source
- Source: Traktorenlexikon, “Massey Ferguson MF 139/A”
- Source: Traktorenlexikon, “Eicher 3151 Tiger II”