9 material differences · fewer than 12
Tractor oneMassey Ferguson MF 6445 (A)2003–2013No measured PTO figureTractor twoRenault Ares 546 RX/RZ2002–2004No measured PTO figure
Which should you choose?
Read our verdict on the MF 6445 (A) and the Ares 546 RX/RZ → 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 · 4 fields identical or within 5%, which is not counted as material
| Field | MF 6445 (A) | Ares 546 RX/RZ | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 88.8 hp | 88.8 hp | — |
| Engine declared | Perkins 1104 C-44 T | JOHN DEERE 4045 TRT 73 | differs |
| Displacement declared | 4.40 L | 4.53 L | — |
| Maximum torque declared | 252 lb·ft · 341 N·m | 254 lb·ft · 345 N·m | — |
| Transmission | |||
| Top speed declared | 24.9–31.1 mph · 40–50 km/h | 24.9 mph · 40 km/h | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 14.4 gpm · 54.6 L/min | — | — |
| Pressure declared | — | 2,756 psi · 190 bar | — |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540/1000/540E/1000E rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 9,700 lb · 4,400 kg | 11,387 lb · 5,165 kg | +17% Ares 546 RX/RZ |
| Maximum permissible mass declared | 18,519 lb · 8,400 kg | 17,108 lb · 7,760 kg | +8% MF 6445 (A) |
| Wheelbase declared | 100.5 in · 2,553 mm | 100.9 in · 2,564 mm | — |
| Length declared | 166.3 in · 4,225 mm | 242.1 in · 6,150 mm | +46% Ares 546 RX/RZ |
| Width declared | 75.7–100.4 in · 1,922–2,550 mm | 100.4 in · 2,550 mm | differs |
| Ground clearance declared | 17.7 in · 449 mm | 21.5 in · 545 mm | +21% Ares 546 RX/RZ |
| Turning radius, braked declared | — | 13.5 ft · 4.10 m | — |
| Fuel tank declared | 158.5 qt · 150.0 L | 179.6 qt · 170.0 L | +13% Ares 546 RX/RZ |
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.
Massey Ferguson MF 6445 (A) sources
- Source: Traktorenlexikon, “Massey Ferguson MF 6445”
- Source: Traktorenlexikon, “Massey Ferguson MF 5445”
Renault Ares 546 RX/RZ sources
- Source: Traktorenlexikon, “Renault Ares 546 RX/RZ”