International Harvester 856 vs International Harvester Hydro 100
Verdict: International Harvester 856 vs International Harvester Hydro 100
The International Harvester 856 and the International Harvester Hydro 100 are both tractors — here is how they stack up on the figures that matter. International Harvester Hydro 100 leads on rated power with 104 hp against 100 hp. International Harvester 856 is the lighter machine (9,370 kg vs 11,470 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester Hydro 100 is the newer design (1973 vs 1967). In short: choose the International Harvester Hydro 100 for outright pulling power, or the International Harvester 856 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.


