12 material differences
Tractor oneAGCO-ALLIS 66901991–1997No measured PTO figureTractor twoCase-IH 5120 Maxxum1989–1997No measured PTO figure
Which should you choose?
Read our verdict on the 6690 and the 5120 Maxxum → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
12 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | 6690 | 5120 Maxxum | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 88.8 hp | 88.8 hp | — |
| Engine declared | S.L.H. 1000.4 AT | CUMMINS NCE 4 TA-390 or NCE 4 T-390 | differs |
| Displacement declared | 4.00 L | 3.92 L | — |
| Maximum torque declared | 224 lb·ft · 304 N·m | 243 lb·ft · 330 N·m | +9% 5120 Maxxum |
| Transmission | |||
| Top speed declared | 18.6–24.9 mph · 30–40 km/h | 18.6–24.9 mph · 30–40 km/h | — |
| Clutch declared | Pedal-operated dry Same double clutch type 12 inch | Case-Poclain multi-disc clutch running in an oil bath | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | — | — |
| Pump flow declared | 9.5 gpm · 35.8 L/min | 19.8 gpm · 75.0 L/min | +109% 5120 Maxxum |
| Pressure declared | 3,046 psi · 210 bar | 3,191 psi · 220 bar | — |
| Three-point lift, at the coupling points declared | 6,790 lb · 3,080 kg | 9,555 lb · 4,334 kg | +41% 5120 Maxxum |
| Rear PTO speeds declared | 540/1000/540E/1000E rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 6,856 lb · 3,110 kg | 11,718 lb · 5,315 kg | +71% 5120 Maxxum |
| Maximum permissible mass declared | 11,464 lb · 5,200 kg | 16,535 lb · 7,500 kg | +44% 5120 Maxxum |
| Wheelbase declared | 96.4 in · 2,449 mm | 92.3 in · 2,345 mm | — |
| Length declared | 161.2 in · 4,094 mm | 165.9 in · 4,213 mm | — |
| Width declared | 82.4 in · 2,093 mm | 86.8 in · 2,204 mm | +5% 5120 Maxxum |
| Ground clearance declared | 17.3 in · 440 mm | 18.4 in · 467 mm | +6% 5120 Maxxum |
| Turning radius, braked declared | 9.6 ft · 2.94 m | 13.2 ft · 4.01 m | +36% 5120 Maxxum |
| Fuel tank declared | 83.5 qt · 79.0 L | 142.7 qt · 135.0 L | +71% 5120 Maxxum |
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.
AGCO-ALLIS 6690 sources
Source
- Source: Traktorenlexikon, “AGCO-Allis 6690”
Case-IH 5120 Maxxum sources
Source
- Source: Traktorenlexikon, “Case-IH 5120”