Nissan YS23DDT Diesel Engine.

Description

Nissan YS23DDT Diesel Engine
Power, Efficiency & Reliability

Nissan YS23DDT Diesel Engine represents the next generation of Nissan’s reliable diesel technology, designed for durability, fuel efficiency, and strong towing performance.
Found in popular models like the Nissan Navara (NP300, D23) and Renault Alaskan, this 4-cylinder DOHC engine combines precision engineering with modern emissions technology.

This 2.3L engine delivers 120–140 kW (160–190 hp) of power and up to 450 Nm of torque, thanks to its twin-turbocharged, common-rail direct injection system.

With a compression ratio of 15.4:1, it ensures efficient combustion and reduced fuel consumption, while maintaining impressive pulling strength under load.

The Nissan YS23DDT Diesel Engine runs a chain-driven DOHC setup for long-term reliability and uses a liquid-cooled system to regulate temperature under tough driving conditions.

Engineered to meet Euro 5 and Euro 6 emission standards, featuring advanced EGR and DPF systems that minimize environmental impact without compromising power.

Each YS23DDT engine is carefully inspected, compression-tested,  from Japan or Europe, ensuring no cracks, leaks, or internal damage.

All engines are hand-picked from low-mileage, running vehicles to guarantee performance and peace of mind for your replacement or upgrade project.

Engine Specifications

The Nissan YS23DDT engine is a 2.3-litre (2298 cc) inline 4-cylinder diesel powerplant, with a DOHC, 16-valve configuration for smooth and efficient performance.
It features a twin-turbocharged, common rail direct injection fuel system, delivering between 120–140 kW (160–190 horsepower) and an impressive 450 Nm of torque available between 1500 and 2500 rpm.
With a compression ratio of 15.4:1, this engine achieves excellent fuel efficiency and strong low-end pulling power.

The YS23DDT runs on diesel fuel and uses a water-cooled system to maintain optimal operating temperatures. It holds approximately 7.3 litres of engine oil (recommended grade: 5W-30 C3) to ensure smooth lubrication and longevity.

Built to meet Euro 5 and Euro 6 emission standards, the engine weighs around 200–220 kilograms (dry), offering a reliable balance of power, durability, and efficiency for both work and everyday driving applications.

Common Weaknesses & Maintenance Notes

The Nissan YS23DDT Diesel Engine is a robust and long-lasting engine, but it relies heavily on proper servicing and clean fuel to perform optimally. Here are some common areas to monitor and maintain for peak performance:

DPF (Diesel Particulate Filter) Blockage:
Short city trips can lead to incomplete DPF regeneration. Taking occasional long drives helps the system self-clean and prevents clogging.

EGR Valve Fouling:
Over time, carbon buildup can restrict EGR flow, reducing efficiency. Cleaning or replacing the valve periodically restores proper function.

Timing Chain Tensioner Wear:
Though chain-driven, prolonged oil neglect can lead to tensioner noise or wear. Regular oil changes every 10,000–15,000 km using high-quality synthetic oil are crucial.

Turbocharger Maintenance:
Twin-turbo setups require good lubrication and clean oil. Allowing the engine to idle for a minute before shutdown preserves turbo health.

Injector & Fuel System Care:
Contaminated diesel can damage injectors. Always use quality fuel and replace fuel filters regularly to prevent injector leaks or rough idling.

With the right maintenance schedule, the Nissan YS23DDT Diesel Engine can easily exceed 350,000 km without major issues.

Its balance of efficiency, torque, and refinement makes it a top choice for those seeking a dependable and powerful diesel engine for towing, off-roading, or daily commuting.