| Nissan YD engine | |
|---|---|
 YD25DDTi in 1998 Nissan Presage | |
| Overview | |
| Manufacturer | Nissan |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 2.2–2.5 L (2,184–2,488 cc) |
| Cylinder bore | 86 mm (3.4 in) 89 mm (3.5 in) |
| Piston stroke | 94 mm (3.7 in) 100 mm (3.9 in) |
| Cylinder block material | Cast-iron |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC |
| Compression ratio | 15.0:1-18.0:1 |
| Combustion | |
| Turbocharger | Garrett GT1749V or IHI RHF4 Variable geometry with intercooler (on some versions) |
| Fuel system | Electronic rotary injection Common rail direct injection (since 2001) |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 79–190 PS (58–140 kW; 78–187 hp) |
| Torque output | 16–45.9 kg⋅m (157–450 N⋅m; 116–332 lb⋅ft) |
The YD engine is a 2.2 and 2.5 L (2,184 and 2,488 cc) inline-four diesel engine from Nissan. It has a cast-iron block and aluminium head with chain driven twin overhead camshafts. The engine shares much of its architecture with the QR petrol engine.