The Tier 4 emission regulations are here and MacDon approached this change in the industry the same way we approach everything... by delivering the best possible performance package to our customers. Our new M155E4 Self-Propelled Windrowers go above and beyond regulation to bring you the harvesting performance you rely on from MacDon.

More Power: 155 HP tuned for performance to handle fluctuating loads in less than ideal harvesting conditions. Better Fuel Economy: Highly efficient engine with DEF consumption as low as 3% of fuel. Our DEF tank has been sized to provide up to 75 hours of use between fills. Proven Reliability: Proven Cummins engine with single turbo delivers reliable performance you can count on. Less Complicated: Our Tier 4 diesels have no DPF (Diesel Particulate Filter) making this a low maintenance Tier 4 system. Less Noise: Our Tier 4 engines run smoother and quieter than previous engines used in MacDon Windrowers.