About · Caterpillar D6NOverview
The Caterpillar D6N is a compact mid-range crawler bulldozer in the 16–20-tonne class, produced since 2004. It is powered by a Cat C7.1 ACERT engine producing 165 hp with a power-shift transmission. The D6N is offered in XL, XW, and LGP undercarriage configurations. Its lower operating weight reduces transport costs and suits sites with restricted ground-bearing capacity.
Typical applicationsWhere this machine is used
Smaller civil engineering contractors, municipalities, and agricultural drainage companies across Europe use the D6N. In the Netherlands and Belgium, it is used for small channel re-profiling and levelling agricultural fields ahead of tile drainage installation. German municipal contractors use it for landfill cell construction and site clearance. The LGP variant suits peat and reclaimed-land groundwork where wider blade coverage and lower foot pressure are required.
Used-market inspectionWhat to check before buying
Check injector sealing and turbocharger condition on higher-hour machines. The hydraulic blade-tilt manifold can suffer internal bypassing — test all blade cylinder functions at full speed and pressure. Inspect undercarriage rollers for flat spots from extended parking on hard surfaces, a common issue on municipal machines that sit unused between seasonal contracts. Request recent oil sample analysis reports to assess internal engine wear.
Current marketPrice position
The D6N competes with the Komatsu D61PX and John Deere 850J in the 15–20-tonne segment. Its lower operating weight allows standard transport permits and fits residential sites. Used D6N values in Benelux have been stable, driven by steady demand from drainage contractors. The LGP variant commands a 10–15% premium over standard-track machines of the same age and hours.