John Deere 20A vs John Deere AOS

Verdict: John Deere 20A vs John Deere AOS

The John Deere 20A and the John Deere AOS are both tractors — here is how they stack up on the figures that matter. John Deere AOS leads on rated power with 18 hp against 17 hp. John Deere AOS holds more fuel (60.6 L vs 22.7 L) for longer stints between fills. John Deere 20A is the newer design (2008 vs 1935). In short: choose the John Deere AOS for outright pulling power, or the John Deere 20A if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.