KOMATSU D51PXI-24 Crawler Tractor Powered by a Komatsu SAA4D107E-7 133 HP, TIER 4 Final emission certified diesel engine. Direct Injection, water cooled variable geometry, turbocharged, aftercooled, KDOC - After-Treatment Assembly Selective Catalytic Reduction (SCR) and Diesel Exhaust Fluid (DEF) with heated thermostatically controlled DEF lines, pump and tank. Large-capacity rear mounted cooling system (side by side coolers) Grid heater - starting aid in cold weather Fan, reversible, electronic control, hydraulically driven, KOMTRAX, Level 5 Integrated ROPS Cab Rear view monitoring system 12v Power Port Front Pull Hook Air suspension seat with 3" retractable seat belt. Lighting Package (3 Front & 2 Rear) Intelligent Machine Control: Integrated 3D GNSS machine control system Includes on-machine components such as IMU+, GNSS antenna, control box, stroke sensing cylinders. Automatic reverse grading Vertical offset switch SL100 wiring provisions 28"(710MM) Single Grouser Shoes, Heavy Duty Link Sealed and Lubricated. PLUS Undercarriage System. Track Roller Guards, Center and End Section UHF Type on machine Radio PAT DOZER ASSEMBLY HIGH CAPAC 11' BLADE DRAWBAR, RIGID UHF Type On-Machine Radio Antenna Kit. Includes Radio Antenna Lead & Base.Radio Antenna. TOPCON SL-100 Hardware Kit