Large-Capacity CAT D7G Used Bulldozer 200HP Engine 20 Ton Semi-U Blade Heavy

Used CAT D7G 20 Ton Crawler Bulldozer – Heavy Earth Moving Specialist

We are offering this Used CAT D7G 20 Ton Crawler Bulldozer in verified working condition, professionally inspected and ready for immediate deployment on your earth moving project. The CAT D7G is a respected heavy bulldozer model known for its dependable performance in dozing, grading, land clearing, and site preparation applications. This unit has completed comprehensive pre-delivery evaluation covering engine diagnostics, undercarriage wear measurement, hydraulic system testing, and full operational verification.

Engine and Powertrain

Powering this D7G is a turbocharged diesel engine delivering 200HP 149kW net output with strong low-end torque for dozing through compacted soil and aggregate materials. The direct-injection fuel system ensures efficient combustion and reliable cold-weather starting. The engine cooling system features a hydraulically driven demand fan that operates only when needed, reducing parasitic power loss and ambient noise levels during partial-load operation.

The powershift transmission provides three forward and three reverse speeds with modulated clutch engagement for smooth directional changes. The torque divider transfers engine power through both a torque converter and direct drive path, combining the smooth engagement of a torque converter with the efficiency of direct drive for maximum drawbar pull when pushing heavy loads.

Blade System and Dozing Performance

This CAT D7G is equipped with a Semi-U Blade, selected for optimal performance in its target applications. The blade features replaceable cutting edges and end bits manufactured from through-hardened boron steel for extended service life in abrasive conditions. The blade's hydraulic tilt and angle functions enable the operator to adjust blade orientation for windrowing, backfilling, spreading, and finish grading operations without leaving the cabin.

Specifications Table

Undercarriage Assessment

The heavy-duty crawler undercarriage has been thoroughly evaluated including track link height measurement, bushing outside diameter measurement, sprocket tooth profile inspection, idler and track roller wear assessment, and track tension verification. All undercarriage components are within acceptable service limits with documented remaining service life percentages. The sealed and lubricated track chain features oil-lubricated pins and bushings that significantly extend undercarriage life compared to dry-pin designs.

Operator Environment

The ROPS-certified operator cabin provides a safe and comfortable working environment with excellent forward visibility to the blade and work area. Features include an air-suspension operator seat with armrest-integrated controls, ergonomic joystick steering and blade control, automatic climate control, and an LCD instrument display providing real-time machine parameters and diagnostic information.

Inspection and After-Sales

Each unit has completed our comprehensive bulldozer inspection protocol including engine compression and leak-down testing, undercarriage wear measurement with remaining life calculation, hydraulic system pressure and flow verification, blade cylinder drift testing, and complete operational evaluation under load. We maintain spare parts inventory for CAT bulldozers and provide technical support with express parts delivery.

Applications

The CAT D7G excels in construction site preparation and land clearing, road building and highway construction, mining overburden removal and reclamation, landfill operations and waste management, quarry and aggregate stockpile management, agricultural land development, forestry and firebreak construction, and large-scale residential and commercial site grading.

Contact us today for detailed photographs, undercarriage inspection report, current hour meter reading, and complete shipping quotation to your nearest international port.