7 material differences · fewer than 12
Tractor oneJ.I. Case 44901979–1983No measured PTO figureTractor twoMassey Ferguson MF 18001971–1975No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (29%); they were not built in overlapping years (1979–1983; 1971–1975). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
7 material differences · 7 fields identical or within 5%, which is not counted as material
| Field | 4490 | MF 1800 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 207.2 hp | 207.3 hp | — |
| Engine declared | CASE A-504 BDT | Caterpillar 3160 | differs |
| Displacement declared | 8.26 L | 10.42 L | +26% MF 1800 |
| Maximum torque declared | — | 477 lb·ft · 647 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6 mph · 30 km/h | — |
| Clutch declared | Hydraulically-actuated wet disc clutch | Pedal-operated dry Borg & Beck single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 24.0 gpm · 90.8 L/min | 25.0 gpm · 94.6 L/min | — |
| Three-point lift, at the coupling points declared | 11,001 lb · 4,990 kg | 10,141 lb · 4,600 kg | +8% 4490 |
| Rear PTO speeds declared | 1000 rpm | 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 20,840 lb · 9,453 kg | 16,094 lb · 7,300 kg | +29% 4490 |
| Maximum permissible mass declared | — | 18,739 lb · 8,500 kg | — |
| Wheelbase declared | 102.0 in · 2,591 mm | 119.7 in · 3,040 mm | +17% MF 1800 |
| Length declared | 232.0 in · 5,893 mm | 244.1 in · 6,200 mm | — |
| Width declared | 96.0 in · 2,438 mm | 98.4 in · 2,500 mm | — |
| Ground clearance declared | 18.0 in · 457 mm | 17.7 in · 450 mm | — |
| Turning radius, braked declared | — | 17.0 ft · 5.18 m | — |
| Fuel tank declared | 512.5 qt · 485.0 L | 479.7 qt · 454 L | +7% 4490 |
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.
J.I. Case 4490 sources
- Source: Traktorenlexikon, “Case 4490”
- Source: Traktorenlexikon, “Case 1370”
Massey Ferguson MF 1800 sources
- Source: Traktorenlexikon, “Massey Ferguson MF 1800”