J.I. Case 420B vs J.I. Case 580 CK Construction King

Verdict: J.I. Case 420B vs J.I. Case 580 CK Construction King

The J.I. Case 420B and the J.I. Case 580 CK Construction King are both industrial tractors — here is how they stack up on the figures that matter. J.I. Case 580 CK Construction King leads on rated power with 48 hp against 47 hp. J.I. Case 420B is the lighter machine (2,918 kg vs 3,630 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. J.I. Case 580 CK Construction King is the newer design (1966 vs 1958). In short: choose the J.I. Case 580 CK Construction King for outright pulling power, or the J.I. Case 420B if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.