13 material differences
Tractor oneRenault 651 (S)1972–1986No measured PTO figureTractor twoUTB U-650/651 M1973–1990No measured PTO figure
Which should you choose?
Read our verdict on the 651 (S) and the U-650/651 M → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
13 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | 651 (S) | U-650/651 M | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 64.1 hp | 64.1 hp | — |
| Engine declared | MWM D 227-4 | UTB D-110 | differs |
| Displacement declared | 3.77 L | 4.76 L | +26% U-650/651 M |
| Maximum torque declared | 164 lb·ft · 222 N·m | 213 lb·ft · 289 N·m | +30% U-650/651 M |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 16.8 mph · 27 km/h | +8% U-650/651 M |
| Clutch declared | Dry LuK double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.9 gpm · 26.0 L/min | 10.6 gpm · 40.0 L/min | +54% U-650/651 M |
| Pressure declared | 2,321 psi · 160 bar | 1,856 psi · 128 bar | +25% 651 (S) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,886 lb · 2,670 kg | 7,452 lb · 3,380 kg | +27% U-650/651 M |
| Wheelbase declared | 88.3 in · 2,242 mm | 95.7 in · 2,431 mm | +8% U-650/651 M |
| Length declared | 142.4 in · 3,617 mm | 156.3 in · 3,970 mm | +10% U-650/651 M |
| Width declared | 73.2–89.8 in · 1,860–2,280 mm | 73.2 in · 1,859 mm | differs |
| Ground clearance declared | 17.7 in · 450 mm | 18.9 in · 480 mm | +7% U-650/651 M |
| Turning radius, braked declared | 10.8 ft · 3.30 m | 11.9 ft · 3.64 m | +10% U-650/651 M |
| Fuel tank declared | 68.7 qt · 65.0 L | 103.6 qt · 98.0 L | +51% U-650/651 M |
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 651 (S) sources
Source
- Source: Traktorenlexikon, “Renault 651 R7461”
UTB U-650/651 M sources
Source
- Source: Traktorenlexikon, “UTB U 650/651 M”