KOMATSU D51PX-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) 28"(710MM) Single Grouser Shoes, Heavy Duty Link Sealed and Lubricated. PLUS Undercarriage System. Track Roller Guards, Center and End Section PAT DOZER ASSEMBLY HIGH CAPACITY 11' DRAWBAR, RIGID TOPCON PLUG-AND-PLAY KIT.