John Deere 8400r -

For a deep dive into the official performance data, you can view the Nebraska Tractor Test 2172, which provides the technical verification for its record-breaking drawbar performance.

An optional dual-pump system provides a massive flow rate of up to 321 L/min (85 gpm), essential for high-demand modern implements. Potential Limitations John Deere 8400R

Under heavy loads, the 675-liter fuel tank may limit daily output, as the tractor can consume roughly 75 liters per hour, potentially requiring a refill before a full day's work is completed. For a deep dive into the official performance

It features a 9.0L PowerTech PSS engine delivering a rated 400 hp , capable of boosting up to 450 hp with Intelligent Power Management (IPM). It sets high standards for power efficiency, with independent tests showing it transmits roughly 91% of its power directly to the drawbar. It features a 9

The 8400R is exclusively fitted with the e23 full power shift transmission , offering 23 forward and 11 reverse speeds. This mechanical gearbox is noted for being perfectly suited to heavy cultivation.

The model is approved for Group 49 rear tires , which provide a larger footprint and better traction to handle its high horsepower without excessive soil compaction.