Challenger MT851 vs Challenger MT865B

Verdict: Challenger MT851 vs Challenger MT865B

The Challenger MT851 and the Challenger MT865B are both tractors — here is how they stack up on the figures that matter. Challenger MT865B leads on rated power with 510 hp against 504 hp. Challenger MT851 is the lighter machine (19,051 kg vs 19,141 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Challenger MT851 holds more fuel (1324.8 L vs 1249.0 L) for longer stints between fills. Challenger MT851 is the newer design (2021 vs 2005). In short: choose the Challenger MT865B for outright pulling power, or the Challenger MT851 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.