1991 Caterpillar D6H Series II Dozer, Caterpillar 3306 6-Cyl Water Cooled Diesel Engine, 165 Gross HP, Powershift Transmission, 3 Forward Gears, 3 Reverse Gears, Semi-U Blade W/Tilt, 4 Piece Cutting Edge, Enclosed Cab, Lefthand & Righthand Door, Cab Heat & A/C, Limb Risers, Rear Drawbar, 24” Single Bar Grouser Pads, SN: 3ZF04367