9 material differences · fewer than 12
Tractor oneJ.I. Case 6401960–1969No measured PTO figureTractor twoZETOR 5511/55451966–1972No measured PTO figure
Which should you choose?
Read our verdict on the 640 and the 5511/5545 → 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 · 2 fields identical or within 5%, which is not counted as material
| Field | 640 | 5511/5545 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 52.0 hp | 51.2 hp | — |
| Engine declared | — | ZETOR Z-5501 | — |
| Displacement declared | — | 3.12 L | — |
| Maximum torque declared | — | 133 lb·ft · 180 N·m | — |
| Transmission | |||
| Top speed declared | 12.4–21.7 mph · 20–35 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | — | Pedal operated dry two-stage double clutch with mechanical booster | — |
| Hydraulics & hitch | |||
| Pump flow declared | 9.3 gpm · 35.2 L/min | 5.3 gpm · 20.0 L/min | +76% 640 |
| Pressure declared | — | 2,134 psi · 147 bar | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,495 lb · 2,039 kg | 5,388 lb · 2,444 kg | +20% 5511/5545 |
| Wheelbase declared | 79.3 in · 2,013 mm | 88.9 in · 2,257 mm | +12% 5511/5545 |
| Length declared | 134.5 in · 3,416 mm | 146.1 in · 3,710 mm | +9% 5511/5545 |
| Width declared | 80.7 in · 2,051 mm | 72.2 in · 1,833 mm | +12% 640 |
| Ground clearance declared | 20.9 in · 530 mm | 16.5 in · 420 mm | +26% 640 |
| Turning radius, braked declared | 9.8 ft · 3.00 m | 11.0 ft · 3.34 m | +11% 5511/5545 |
| Fuel tank declared | 69.2 qt · 65.5 L | 74.0 qt · 70.0 L | +7% 5511/5545 |
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 640 sources
- Source: Traktorenlexikon, “Case 640”
ZETOR 5511/5545 sources
- Source: Traktorenlexikon, “Zetor 5511”