International Harvester 666 vs International Harvester 685

Verdict: International Harvester 666 vs International Harvester 685

The International Harvester 666 and the International Harvester 685 are both tractors — here is how they stack up on the figures that matter. International Harvester 666 leads on rated power with 75 hp against 72 hp. International Harvester 685 is the lighter machine (6,703 kg vs 6,780 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 666 holds more fuel (124.9 L vs 112.0 L) for longer stints between fills. International Harvester 685 is the newer design (1981 vs 1972). In short: choose the International Harvester 666 for outright pulling power, or the International Harvester 685 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.