Nissan YD25DDTi 2.5L Common-Rail Turbo Diesel Engine

OVERVIEW

The Nissan YD25DDTi is a 2.5-liter inline-four common-rail turbo diesel engine widely used across Nissan light commercial vehicles and SUVs. Introduced in the late 1990s and comprehensively updated in the mid-2000s, it is recognized for a strong balance of power, torque, and fuel efficiency.

DESIGN & CONSTRUCTION

• Engine code: Nissan YD25DDTi
• Configuration: Inline 4-Cylinder diesel
• Displacement: 2.5 liters
• Block material: Cast-iron for durability and strength
• Cylinder head: Aluminum alloy for improved cooling and weight reduction
• Valvetrain: Four valves per cylinder
• Fuel system: Common-rail direct injection
• Induction: Turbocharger with intercooler

PERFORMANCE

• Power output: Approximately 150 hp in early YD25DDTi versions
• Power output (updated versions): Up to around 190 hp
• Torque: Up to approximately 450 Nm in later updates
• Characteristics: Strong mid-range torque, smooth and flexible power delivery

APPLICATIONS

The Nissan YD25DDTi engine has been fitted to a range of Nissan models, particularly in work and recreational vehicles:

• Nissan Navara pickup (various generations and markets)
• Nissan Frontier pickup
• Nissan Pathfinder SUV
• Nissan Xterra SUV
• Selected Nissan MPVs and regional variants

RELIABILITY & USAGE PROFILE

• Well-regarded for high-mileage capability when serviced on schedule
• Suited to towing, load-carrying, and mixed on/off-road use
• Popular in both commercial fleets and recreational 4x4 applications

This overview is intended as a general technical reference to the Nissan YD25DDTi 2.5L common-rail turbo diesel engine.