About · Liebherr PR 734Overview
The Liebherr PR734 is a mid-size hydrostatic crawler bulldozer in the 20–25-tonne class, produced continuously since 2010. Its hydrostatic direct drive eliminates the mechanical transmission: the engine drives a variable-displacement pump that powers hydraulic motors at each track. This delivers infinitely variable travel speed, precise differential steering, and engine braking in all conditions. The PR734 is powered by a Liebherr D934A engine producing 218 hp and pushes a 4.8 m³ six-way blade as standard.
Typical applicationsWhere this machine is used
The PR734 suits applications requiring precise grade control and frequent directional changes. Landfill operators in Germany and the Netherlands use it for daily cover compaction and cell shaping. Infinitely variable speed allows the operator to match push speed to compaction requirements. Contractors working in wetland restoration and polder reclamation use it for its traction on slippery clay and peat surfaces.
Used-market inspectionWhat to check before buying
The hydrostatic drive components are the key inspection focus. Request hydraulic oil sample analysis history. Liebherr recommends annual sampling, and results show pump and motor wear over time. The main hydraulic pump and final-drive motors are expensive to replace but have long service lives when maintained correctly. Check blade push-arms and angle cylinders for distortion from lateral impact loading. Confirm the service history was performed at Liebherr-authorised centres.
Current marketPrice position
The PR734 competes with the Komatsu D65PX and Caterpillar D6T but occupies a distinct position due to its hydrostatic drive. German landfill operators and environmental construction contractors are the primary buyers; demand is steady. Residual values are strong for machines with documented service histories. The NL/BE market is smaller but growing, driven by specialist civil engineering contractors.
