John Deere 8R 440 vs John Deere 9420R

Verdict: John Deere 8R 440 vs John Deere 9420R

The John Deere 8R 440 and the John Deere 9420R are both tractors — here is how they stack up on the figures that matter. John Deere 8R 440 leads on rated power with 434 hp against 420 hp. John Deere 9420R is the lighter machine (18,810 kg vs 19,592 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8R 440 is the newer design (2027 vs 2015). In short: choose the John Deere 8R 440 for outright pulling power, or the John Deere 9420R if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.