The Nissan YD25DDTi engine is a 2.5-liter, inline-four-cylinder, turbocharged diesel engine that has been a workhorse for Nissan's light commercial vehicles since 1998. Known for its balance of power, fuel efficiency, and strong torque output, it is primarily found in the Nissan Navara (D22, D40, NP300) and Pathfinder (R51) models.
