Allis Chalmers 645 vs Allis Chalmers 745
Verdict: Allis Chalmers 645 vs Allis Chalmers 745
The Allis Chalmers 645 and the Allis Chalmers 745 are both industrial tractors — here is how they stack up on the figures that matter. Allis Chalmers 745 leads on rated power with 202 hp against 165 hp. Allis Chalmers 645 is the lighter machine (10,401 kg vs 15,989 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 745 is the newer design (1967 vs 1965). In short: choose the Allis Chalmers 745 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.