10 material differences · fewer than 12
Tractor oneJohn Deere 84302006–2009No measured PTO figureTractor twoJohn Deere 8520 T2002–2005No measured PTO figure
Which should you choose?
We will not advise between these two machines, because the drive differs (4WD; Tracks); they were not built in overlapping years (2006–2009; 2002–2005); the 8520 T is on tracks, not an alternative to an ordinary tractor. The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
10 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | 8430 | 8520 T | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 291.1 hp | 291.1 hp | — |
| Engine declared | John Deere PowerTech-Plus 6.090 HRW-04 | John Deere-PowerTech 6.081 HRW-28 | differs |
| Displacement declared | 8.98 L | 8.13 L | +10% 8430 |
| Maximum torque declared | 930 lb·ft · 1,261 N·m | 912 lb·ft · 1,236 N·m | — |
| Transmission | |||
| Top speed declared | 24.9–31.1 mph · 40–50 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | Pedal-operated, hydraulic-wet John Deere multi-disc clutch | Pedal-operated hydraulic wet John Deere multi-plate clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | — | Closed centre | — |
| Hydraulic control declared | Load sensing | Load sensing | — |
| Pump flow declared | — | 34.6 gpm · 131.0 L/min | — |
| Pressure declared | 3,336 psi · 230 bar | — | — |
| Rear PTO speeds declared | 1000 rpm | 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 24,824 lb · 11,260 kg | 27,280 lb · 12,374 kg | +10% 8520 T |
| Maximum permissible mass declared | 30,865 lb · 14,000 kg | 31,526 lb · 14,300 kg | — |
| Wheelbase declared | 120.1 in · 3,050 mm | 89.0 in · 2,260 mm | +35% 8430 |
| Length declared | 233.8 in · 5,938 mm | 217.7 in · 5,530 mm | +7% 8430 |
| Width declared | 118.6–125.6 in · 3,012–3,190 mm | 103.7–144.0 in · 2,634–3,657 mm | differs |
| Height, over the cab declared | 124.2 in · 3,155 mm | 122.9 in · 3,122 mm | — |
| Ground clearance declared | 17.3 in · 440 mm | 13.8 in · 350 mm | +26% 8430 |
| Fuel tank declared | 720.0 qt · 681.4 L | 519.9 qt · 492.0 L | +38% 8430 |
John Deere 8430 sources
Source
- Source: Traktorenlexikon, “John Deere 8430”
John Deere 8520 T sources
Source
- Source: Traktorenlexikon, “John Deere 8520T”
- Source: OECD test report 2054, 2003