John Deere 8520 vs John Deere 9420T

Verdict: John Deere 8520 vs John Deere 9420T

The John Deere 8520 and the John Deere 9420T are both tractors — here is how they stack up on the figures that matter. John Deere 8520 leads on rated power with 305 hp against 300 hp. John Deere 9420T is the lighter machine (17,690 kg vs 23,050 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the John Deere 8520 for outright pulling power, or the John Deere 9420T if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.