8 material differences · fewer than 12
Tractor oneJohn Deere 48401978–1982No measured PTO figureTractor twoMassey Ferguson MF 36801989–1990No measured PTO figure
Which should you choose?
Read our verdict on the 4840 and the MF 3680 → 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 | 4840 | MF 3680 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 178.6 hp | 177.7 hp | — |
| Engine declared | John Deere 6.466 AT | Valmet 612 DS | differs |
| Displacement declared | 7.64 L | 7.37 L | — |
| Maximum torque declared | — | 476 lb·ft · 645 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6–24.9 mph · 30–40 km/h | differs |
| Clutch declared | Hydraulically operated oil-cooled double-plate clutch | pedal operated dry air cooled double clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Closed centre | — | — |
| Pump flow declared | 23.0 gpm · 87.1 L/min | 14.9 gpm · 56.3 L/min | +55% 4840 |
| Pressure declared | 3,481 psi · 240 bar | — | — |
| Rear PTO speeds declared | 1000 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 14,899 lb · 6,758 kg | 12,785 lb · 5,799 kg | +17% 4840 |
| Wheelbase declared | 118.5 in · 3,010 mm | 115.7 in · 2,940 mm | — |
| Length declared | 176.8 in · 4,490 mm | 203.3 in · 5,165 mm | +15% MF 3680 |
| Width declared | 95.7 in · 2,430 mm | 94.1 in · 2,391 mm | — |
| Ground clearance declared | — | 17.0 in · 433 mm | — |
| Turning radius, braked declared | 13.5 ft · 4.10 m | — | — |
| Fuel tank declared | 412.0 qt · 389.9 L | 274.7–332.9 qt · 260.0–315.0 L | differs |
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 4840 sources
- Source: Traktorenlexikon, “John Deere 4840”
Massey Ferguson MF 3680 sources
- Source: Traktorenlexikon, “Massey Ferguson MF 3680”