The D1 Mulcher features improved visibility, seat mounted controls, an intuitive operator interface, a pressurized cab, a hinged radiator grill, a tractor platform, a long life mulching head, a hydraulically operated front door and adjustable push bar, a closed loop hydrostatic circuit, a reversible drum, a drum speed bar indicator, a Cat C3.6 diesel engine, a Cat Sealed and Lubricated Track, a reversing fan, a turbine precleaner, and improved fuel economy.