Allis Chalmers 645 vs Allis Chalmers HD-16DP
Verdict: Allis Chalmers 645 vs Allis Chalmers HD-16DP
The Allis Chalmers 645 and the Allis Chalmers HD-16DP are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers HD-16DP leads on rated power with 183 hp against 165 hp. Allis Chalmers 645 is the lighter machine (10,401 kg vs 16,193 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers HD-16DP holds more fuel (378.5 L vs 208.2 L) for longer stints between fills. Allis Chalmers 645 is the newer design (1965 vs 1964). In short: choose the Allis Chalmers HD-16DP 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.