8 material differences · fewer than 12
Tractor oneDeutz (KHD) D 401958–1959No measured PTO figureTractor twoJ.I. Case 4401960–1969No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1958–1959; 1960–1969). 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
8 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | D 40 | 440 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 34.3 hp | 34.1 hp | — |
| Engine declared | KHD F3L 712 | — | — |
| Displacement declared | 2.55 L | — | — |
| Maximum torque declared | 94 lb·ft · 127 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20.0 km/h | 12.4–21.7 mph · 20–35 km/h | differs |
| Clutch declared | Pedal operated dry single-plate clutch by Fichtel & Sachs type G-22 Z | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.0 gpm · 19.0 L/min | 8.5 gpm · 32.2 L/min | +69% 440 |
| Pressure declared | 1,707 psi · 118 bar | — | — |
| Rear PTO speeds declared | 555 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 3,858 lb · 1,750 kg | 3,120 lb · 1,415 kg | +24% D 40 |
| Wheelbase declared | 83.0 in · 2,109 mm | 75.2 in · 1,911 mm | +10% D 40 |
| Length declared | 131.9 in · 3,350 mm | 130.2 in · 3,307 mm | — |
| Width declared | 61.1 in · 1,552 mm | 61.4 in · 1,559 mm | — |
| Ground clearance declared | 15.6 in · 395 mm | 13.8 in · 350 mm | +13% D 40 |
| Turning radius, braked declared | 10.5 ft · 3.20 m | 7.9 ft · 2.41 m | +33% D 40 |
| Fuel tank declared | 57.1 qt · 54 L | 40.8 qt · 38.6 L | +40% D 40 |
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.
Deutz (KHD) D 40 sources
- Source: Traktorenlexikon, “Deutz D 40”
- Source: Traktorenlexikon, “Deutz D 40.1”
- Source: Traktorenlexikon, “Deutz D 40 S”
J.I. Case 440 sources
- Source: Traktorenlexikon, “Case 440”