The Nissan YD25 engine is a 2.5L, 4-cylinder, 16-valve, inline-4 DOHC turbo diesel engine found in the Navara NP300 and other Nissan vehicles, with specifications that vary slightly by model but generally include a displacement of 2488cc, a long-stroke design (89mm bore x 100mm stroke), a common rail direct injection system, and a variable geometry turbocharger with intercooler for strong low-end torque and power. Power and torque outputs differ by variant, with typical figures around 125 kW (168 hp) and 403 Nm (297 lb-ft) for some models, or 174 HP at 3600 RPM and 450 Nm at 1600-2800 RPM for other YD25DDTi variants.