Challenger 45 vs Challenger MT645B

Verdict: Challenger 45 vs Challenger MT645B

The Challenger 45 and the Challenger MT645B are both tractors — here is how they stack up on the figures that matter. Challenger MT645B leads on rated power with 205 hp against 200 hp. Challenger 45 is the lighter machine (10,296 kg vs 18,308 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Challenger MT645B is the newer design (2005 vs 1995). In short: choose the Challenger MT645B for outright pulling power, or the Challenger 45 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.