Allis Chalmers 645 vs Allis Chalmers HD-16 Series B
Verdict: Allis Chalmers 645 vs Allis Chalmers HD-16 Series B
The Allis Chalmers 645 and the Allis Chalmers HD-16 Series B are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers HD-16 Series B leads on rated power with 172 hp against 165 hp. Allis Chalmers 645 is the lighter machine (10,401 kg vs 38,800 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers HD-16 Series B is the newer design (1971 vs 1965). In short: choose the Allis Chalmers HD-16 Series B for outright pulling power, or the Allis Chalmers 645 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.