Allis Chalmers 840 vs Allis Chalmers 840B
Verdict: Allis Chalmers 840 vs Allis Chalmers 840B
The Allis Chalmers 840 and the Allis Chalmers 840B are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers 840B leads on rated power with 85 hp against 83 hp. Allis Chalmers 840 is the lighter machine (6,645 kg vs 7,555 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 840B is the newer design (1975 vs 1970). In short: choose the Allis Chalmers 840B for outright pulling power, or the Allis Chalmers 840 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.