Launched just over a year ago, John Deere’s 8400R sets new standards in tractor lugging power. The biggest Deere conventional wheeled tractor ripped a whopping 275kW/369hp off the DLG brake truck. And this wasn’t the only record it set…
Back in the 12/2003 issue when we tested the John Deere 8520, the big green set a new drawbar power record, putting 203kW/272hp on the ground. Some 14 years later, another Deere flagship powers down the test track setting two profi records. First up the 8400R gives a 35% rise in drawbar power at a maximum engine speed that is only 25% higher compared with the 8520.This suggests significant improvements to driveline efficiency (including features like the VariCool fan and many, many more details) which have substantial effects on fuel consumption. The latter dropped by nearly 10% to 234g/kWh for draft work, setting a second profi test record.
For more up-to-date farming news and reviews click here and subscribe now to profi for just £3.99 an issue.
