8 material differences · fewer than 12
Tractor oneALLIS-CHALMERS FD-41962–1965No measured PTO figureTractor twoMassey Ferguson MF 135 (Massey Ferguson)1964–1978No measured PTO figure
Which should you choose?
Read our verdict on the FD-4 and the MF 135 → 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 · 3 fields identical or within 5%, which is not counted as material
| Field | FD-4 | MF 135 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 41.4 hp | 41.4 hp | — |
| Engine declared | VENDEUVRE 56 | Perkins AD 3.152 | differs |
| Displacement declared | — | 2.50 L | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 21.7 mph · 35 km/h | +75% MF 135 |
| Clutch declared | Pedal operated dry two stage double clutch | Foot operated dry and air cooled MF dual clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 4.9 gpm · 18.4 L/min | — |
| Pressure declared | — | 2,589 psi · 178 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 4,057 lb · 1,840 kg | 3,759 lb · 1,705 kg | +8% FD-4 |
| Wheelbase declared | 84.6 in · 2,150 mm | 72.0–75.2 in · 1,830–1,910 mm | differs |
| Length declared | 120.1 in · 3,050 mm | 119.3–122.0 in · 3,030–3,100 mm | — |
| Width declared | 66.1 in · 1,680 mm | 64.2 in · 1,630 mm | — |
| Ground clearance declared | 18.5 in · 470 mm | 11.8–13.8 in · 300–350 mm | differs |
| Turning radius, braked declared | — | 9.3 ft · 2.84 m | — |
| Fuel tank declared | 63.4 qt · 60.0 L | 40.8 qt · 38.6 L | +55% FD-4 |
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.
ALLIS-CHALMERS FD-4 sources
Source
- Source: Traktorenlexikon, “Allis-Chalmers FD 4”
Massey Ferguson MF 135 (Massey Ferguson) sources
Source
- Source: Traktorenlexikon, “Massey Ferguson MF 135”
- Source: Traktorenlexikon, “Massey Ferguson MF 148”