9 material differences · fewer than 12
Tractor oneRenault 9211977–1980No measured PTO figureTractor twoSOMECA 940 (TD)1978–1979No measured PTO figure
Which should you choose?
Read our verdict on the 921 and the 940 (TD) → 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 · 5 fields identical or within 5%, which is not counted as material
| Field | 921 | 940 (TD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 90.8 hp | 90.8 hp | — |
| Engine declared | MWM D 227-6 | O.M.-FIAT CO 3/80 | differs |
| Displacement declared | 5.66 L | 4.94 L | +15% 921 |
| Maximum torque declared | 249 lb·ft · 337 N·m | — | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Dry LuK double clutch | — | — |
| Hydraulics & hitch | |||
| Pressure declared | 2,321 psi · 160 bar | 2,901 psi · 200 bar | +25% 940 (TD) |
| Three-point lift, at the coupling points declared | 10,119 lb · 4,590 kg | 8,378 lb · 3,800 kg | +21% 921 |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm / 1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 8,488 lb · 3,850 kg | 8,708 lb · 3,950 kg | — |
| Wheelbase declared | 105.0 in · 2,668 mm | 93.3 in · 2,370 mm | +13% 921 |
| Length declared | 172.5 in · 4,382 mm | 159.4 in · 4,050 mm | +8% 921 |
| Width declared | 77.0–96.7 in · 1,955–2,455 mm | 76.2–99.7 in · 1,935–2,532 mm | — |
| Ground clearance declared | 17.1 in · 435 mm | 22.4 in · 570 mm | +31% 940 (TD) |
| Turning radius, braked declared | 12.9 ft · 3.92 m | 12.6 ft · 3.84 m | — |
| Fuel tank declared | 123.6 qt · 117.0 L | 95.1 qt · 90.0 L | +30% 921 |
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.
Renault 921 sources
- Source: Traktorenlexikon, “Renault 921 R7681”
- Source: Traktorenlexikon, “Renault 891 R7681”
SOMECA 940 (TD) sources
- Source: Traktorenlexikon, “Someca 940”