International Harvester 1566 vs International Harvester 6788
Verdict: International Harvester 1566 vs International Harvester 6788
The International Harvester 1566 and the International Harvester 6788 are both tractors — here is how they stack up on the figures that matter. International Harvester 6788 leads on rated power with 171 hp against 161 hp. International Harvester 6788 is the lighter machine (7,674 kg vs 13,200 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 6788 is the newer design (1981 vs 1974). In short: choose the International Harvester 6788 for outright pulling power, or the International Harvester 1566 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.