International Harvester 666 vs International Harvester 734

Verdict: International Harvester 666 vs International Harvester 734

The International Harvester 666 and the International Harvester 734 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 73 hp. International Harvester 666 is the lighter machine (6,780 kg vs 7,477 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 70.0 L) for longer stints between fills. In short: choose the International Harvester 666 for outright pulling power, or the International Harvester 734 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.