John Deere 4520 vs John Deere 6145J

Verdict: John Deere 4520 vs John Deere 6145J

The John Deere 4520 and the John Deere 6145J are both tractors — here is how they stack up on the figures that matter. John Deere 6145J leads on rated power with 123 hp against 122 hp. John Deere 6145J is the lighter machine (11,290 kg vs 12,285 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 6145J holds more fuel (314.9 L vs 54.9 L) for longer stints between fills. John Deere 6145J is the newer design (2010 vs 1969). In short: choose the John Deere 6145J for outright pulling power, or the John Deere 4520 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.