Nissan Navara D40 3L V9X

The Nissan Navara D40 equipped with the V9X 3.0L V6 diesel represents the high-performance variant of the platform, offering a significant step up in power, torque, and refinement compared to the four-cylinder YD25 models. Developed in collaboration with Renault, the V6 brings a more effortless driving experience to the D40, particularly in towing and highway applications. The V9X is a 3.0L V6 turbo diesel featuring a compacted graphite iron (CGI) block, aluminium cylinder heads, and a high-pressure common rail injection system paired with a single variable geometry turbocharger. Engine management is handled by a Bosch EDC17 ECU using detailed torque modelling and airflow calculation via MAF and MAP inputs. From the factory, calibration is conservative relative to the engine's capability. With correct calibration, torque delivery improves through the low to mid-range — the engine delivers smoother and stronger torque, acceleration becomes more effortless, and maintaining speed when towing or climbing requires significantly less effort.