10 material differences · fewer than 12
Tractor oneALLIS-CHALMERS 190 XT1965–1971No measured PTO figureTractor twoRenault 851 (S)1974–1989No measured PTO figure
Which should you choose?
Read our verdict on the 190 XT and the 851 (S) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 190 XT | 851 (S) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 84.9 hp | 83.9 hp | — |
| Engine declared | ALLIS-CHALMERS D-2900 | MWM TD 226-4 | differs |
| Displacement declared | 4.93 L | 4.16 L | +19% 190 XT |
| Maximum torque declared | — | 212 lb·ft · 288 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 | |||
| Hydraulic centre declared | Open centre | — | — |
| Pump flow declared | 12.0 gpm · 45.4 L/min | 8.9 gpm · 33.7 L/min | +35% 190 XT |
| Pressure declared | — | 2,321 psi · 160 bar | — |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 7,665–7,844 lb · 3,477–3,558 kg | 6,647 lb · 3,015 kg | differs |
| Wheelbase declared | 105.7 in · 2,686 mm | 95.6 in · 2,428 mm | +11% 190 XT |
| Length declared | 157.5 in · 4,000 mm | 157.1 in · 3,990 mm | — |
| Width declared | 87.6 in · 2,226 mm | 73.0–96.7 in · 1,855–2,455 mm | differs |
| Ground clearance declared | 21.7 in · 552 mm | 15.2 in · 385 mm | +43% 190 XT |
| Turning radius, braked declared | 11.1 ft · 3.38 m | 12.1 ft · 3.70 m | +9% 851 (S) |
| Fuel tank declared | 208.0 qt · 196.8 L | 81.4 qt · 77.0 L | +156% 190 XT |
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.
ALLIS-CHALMERS 190 XT sources
- Source: Traktorenlexikon, “Allis-Chalmers 190XT”
Renault 851 (S) sources
- Source: Traktorenlexikon, “Renault 851 R7661”