01
Nissan YD25DDTi Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 2.5-litre diesel workhorse fitted to the Nissan Navara and Pathfinder. Reconditioned units typically start from £1,800 , serving a consistent baseline of UK commercial and 4x4 replacement demand.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£800
Reconditioned from
£1,800
Rebuilt from
£2,800
GB
Secure enquiry - no spam.
Quotes only from vetted UK engine specialists.
Key Specs
Nissan YD25DDTi - Specifications at a Glance
Engine Code
YD25DDTi
Fuel
Diesel
Configuration
2.5L inline-4, common-rail direct injection
Power Output(s)
171-190 hp (depending on Navara/Pathfinder tune)
Years Produced
2004-2015
UK Models Fitted
2 Nissan models - full list in Compatibility below
Replaced
YD22DDTi (earlier 2.2L unit)
Replaced By
YS23DDTi (2.3L twin-turbo, post-2015)
Most Common Failure
Timing chain stretch and rattle
Reconditioned Price Range
£1,800-£3,200 supply-only
Vetted UK specialists for YD25DDTi replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which Nissan Models Use the YD25DDTi-
TAG: Fitted To
| Model | Generation/Chassis | Badge(s) | Years | Link |
|---|---|---|---|---|
 Nissan Navara | D40 | dCi 170, dCi 190, D-220, D-224 | 2005-2015 | |
| Nissan Pathfinder | R51 | dCi 170, dCi 190 | 2005-2015 |
02
Nissan Pathfinder
CROSS-BRAND
YD25DDTi is documented across 2 BMW applications spanning Nissan Navara, Nissan Pathfinder. Registration lookup confirms the exact suffix before quotes are sent.
Not sure which engine your car has?
Not sure which engine your car has- Enter your registration above - we'll confirm your exact YD25DDTi fitment before any quotes are sent.
Prices
Nissan YD25DDTi Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £800-£1,500 | £1,500-£2,500 | 3-6 months |
Reconditioned | £1,800-£3,200 | £2,500-£4,200 | 12-24 months |
Rebuilt | £2,800-£4,500 | £3,500-£5,500 | 12-24 months |
The final Nissan YD25DDTi engine replacement cost hinges heavily on the turbocharger condition and whether the timing chain has already been addressed. A unit with a documented recent chain and tensioner replacement commands a premium but reduces immediate risk. For a full breakdown of labour and parts, see our full reconditioned engine cost guide.
Labour Guide
Fitting a YD25DDTi typically takes 10-14 hours at £65-£85/hr (independent) - confirm exact labour when comparing quotes .
Price Factors
Ready to compare YD25DDTi quotes?
Get competitive quotes from trusted UK specialists today.
Common Problems
Nissan YD25DDTi Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the YD25DDTi, based on real-world data and verified failure patterns.
Verified issue focus: Timing chain stretch and rattle.
1. Timing Chain Stretch and Rattle (Pre-2010 units)
1. Timing Chain Stretch and Rattle (Pre-2010 units)
Typical onset:
80,000-120,000 miles
What happens:
The timing chain and tensioner wear prematurely, causing a distinct rattling noise on cold starts. If ignored, the chain can skip teeth, leading to catastrophic piston-to-valve contact and total engine failure.
Repair vs replace:
If caught early, a chain and tensioner kit replacement is viable. However, if the engine has suffered interference damage, a full YD25DDTi replacement is the only safe option. Read our full timing chain failure guide.
Read more about this issue
2. Injector Seal Degradation and Carbon Buildup
2. Injector Seal Degradation and Carbon Buildup
Typical onset:
90,000-150,000 miles
What happens:
The copper washer seals at the base of the injectors harden and fail, allowing combustion gases to escape into the valve cover. This causes heavy carbon buildup, rough idling, and a distinct "chuffing" sound.
Repair vs replace:
Replacing the injector seals is a straightforward, low-cost repair. However, prolonged neglect can lead to injector seizure, requiring expensive cylinder head work or a full unit swap.
Read more about this issue
3. EGR Cooler and DPF Clogging
3. EGR Cooler and DPF Clogging
Typical onset:
100,000+ miles
What happens:
Frequent short trips or urban driving prevent the YD25DDTi's exhaust system from reaching optimal temperatures, leading to rapid DPF blockage and EGR cooler clogging.
Repair vs replace:
Professional DPF cleaning or EGR blanking (where legally permissible) can restore performance. If the turbocharger has been damaged by DPF-related oil starvation, a reconditioned YD25DDTi engine is often more economical than piecemeal repairs.
Read more about this issue
Post-2010 revisions of the YD25DDTi received updated timing chain guides and tensioners, significantly reducing the incidence of early chain failure .
Compare rebuilt YD25DDTi prices with the failure already addressed
Engine Variants
How to Confirm You Have the YD25DDTi
The YD25DDTi engine code is stamped directly onto the engine block, typically visible on a machined pad near the bell housing, and is also listed on the vehicle's VIN plate under the bonnet or on the V5C logbook. It is sometimes confused with the older 2.2L YD22DDTi or the newer 2.3L YS23DDTi. Fitting the wrong revision can result in ECU mapping mismatches, incorrect turbo plumbing, and mounting point discrepancies. Not sure- Enter your registration above - we'll confirm your exact YD25DDTi fitment before any quotes are sent.
Easily Confused
YD22DDTi
- the older 2.2L unit it replaced, which lacked common-rail refinement but was mechanically simpler and did not suffer from the same timing chain stretch issues.
Alternative / Next-Gen Code
YS23DDTi
- the 2.3L twin-turbo diesel that succeeded it in 2015, featuring a fundamentally redesigned block and timing chain setup to resolve the YD25's known weaknesses.
Related JLR Variants
M9R 2.0 dCi
- the Renault-sourced 2.0L diesel found in smaller Nissan SUVs like the Qashqai and X-Trail; a different engine family entirely, but sharing some ancillary component suppliers and DPF sensitivities.
Confirm the exact YD25DDTi fitment
The YD25DDTi engine code is stamped directly onto the engine block, typically visible on a machined pad near the bell housing, and is also listed on the vehicle's VIN plate under the bonnet or on the V5C logbook. It is sometimes confused with the older 2.2L YD22DDTi or the newer 2.3L YS23DDTi. Fitting the wrong revision can result in ECU mapping mismatches, incorrect turbo plumbing, and mounting point discrepancies. Not sure- Enter your registration above - we'll confirm your exact YD25DDTi fitment before any quotes are sent.
Buying Guide
Buying a Replacement YD25DDTi - What to Choose
Choosing the right replacement route depends on your budget, risk tolerance, and ownership goals. Here's a breakdown of your options.
Used:
A used YD25DDTi can be a viable budget option for older, lower-value Navara or Pathfinder models, but only if accompanied by verifiable service history proving the timing chain and injectors have been recently addressed. Without this, the risk of inheriting imminent failures is high. Explore used YD25DDTi options.
Reconditioned:
A properly reconditioned YD25DDTi is the most popular choice for commercial operators. A reputable rebuild will replace the timing chain, tensioners, injector seals, and water pump as standard, effectively resetting the engine's reliability clock. View reconditioned YD25DDTi engines.
Rebuilt:
For high-mileage workhorses or vehicles that have suffered catastrophic timing chain failure, a fully rebuilt YD25DDTi with upgraded components (e.g., reinforced chain guides) offers the longest possible lifespan. Learn about rebuilt YD25DDTi engines.
Supply & Fit Line:
Our network of vetted UK specialists offers seamless YD25DDTi supply and fit packages, ensuring your replacement is installed correctly and backed by a comprehensive nationwide warranty. Get a supply and fit quote.
Vehicle Value Note:
The YD25DDTi is predominantly found in 2005-2015 Nissan Navara and Pathfinder models, which typically hold values between £3,000 and £12,000 depending on condition and mileage. While a reconditioned replacement is usually financially viable, if your vehicle is at the lower end of this spectrum and requires extensive additional repairs, it is prudent to evaluate its scrap or part-exchange value before committing to a full engine replacement.
Compare YD25DDTi Engine Prices Now
Related Engines
Engines Related to the Nissan YD25DDTi
Explore engines that are closely related to the Nissan YD25DDTi, including its predecessor, successor, and key family variants.
Predecessor
YD22DDTi
- the older 2.2L unit it replaced, which lacked common-rail refinement but was mechanically simpler and did not suffer from the same timing chain stretch issues.
Successor
YS23DDTi
- the 2.3L twin-turbo diesel that succeeded it in 2015, featuring a fundamentally redesigned block and timing chain setup to resolve the YD25's known weaknesses.
Sibling
M9R 2.0 dCi
- the Renault-sourced 2.0L diesel found in smaller Nissan SUVs like the Qashqai and X-Trail; a different engine family entirely, but sharing some ancillary component suppliers and DPF sensitivities.
FAQ
Nissan YD25DDTiFrequently Asked Questions
Question 1How much does a Nissan YD25DDTi engine replacement cost-
A reconditioned Nissan YD25DDTi engine typically costs between £1,800 and £3,200 for supply-only, with fitted prices ranging from £2,500 to £4,200 depending on the specialist and your location. Prices vary based on whether the timing chain and turbocharger are included in the rebuild. Always request a detailed breakdown of what is replaced during the reconditioning process.
- Prices vary based on whether the timing chain and turbocharger are included in the rebuild.
- Always request a detailed breakdown of what is replaced during the reconditioning process.
Question 2What is the most common problem with the YD25DDTi engine-
The most documented issue is premature timing chain stretch and tensioner wear, particularly in pre-2010 models. This presents as a distinct rattling noise on cold starts and can lead to catastrophic engine failure if ignored. Injector seal degradation and EGR/DPF clogging are also frequent secondary issues.
- This presents as a distinct rattling noise on cold starts and can lead to catastrophic engine failure if ignored.
- Injector seal degradation and EGR/DPF clogging are also frequent secondary issues.
Question 3Which Nissan models use the YD25DDTi engine-
The YD25DDTi was the primary diesel engine fitted to the Nissan Navara (D40 generation) and the Nissan Pathfinder (R51 generation) between 2005 and 2015. It was offered in various power outputs, typically badged as dCi 170 or dCi 190.
- It was offered in various power outputs, typically badged as dCi 170 or dCi 190.
- Confirm your exact model fitment by entering your registration above.
Question 4Should I buy a used or reconditioned YD25DDTi engine-
A reconditioned YD25DDTi is strongly recommended over a used unit for this specific engine code. Because timing chain wear is a known pattern, a professional rebuild ensures the chain, tensioners, and injector seals are replaced as standard. A used engine carries the risk of inheriting these exact issues with no warranty protection.
- Because timing chain wear is a known pattern, a professional rebuild ensures the chain, tensioners, and injector seals are replaced as standard.
- A used engine carries the risk of inheriting these exact issues with no warranty protection.
Question 5How do I know if my Nissan has the YD25DDTi engine-
The engine code is stamped on a machined pad on the engine block, usually near the bell housing, and is also listed on the vehicle's VIN plate under the bonnet or on the V5C logbook. Enter your registration above and we will confirm your exact engine code instantly.
- It is distinct from the older 2.2L YD22DDTi and the newer 2.3L YS23DDTi.
- Enter your registration above and we will confirm your exact engine code instantly.
Compare Nissan YD25DDTi Engine Prices Today
Vetted UK specialists who work on the YD25DDTi and Nissan commercial lineup every week Minimum 12-month warranty on every reconditioned and rebuilt YD25DDTi Nationwide delivery - supply-only or full supply & fit available Get a free, no-obligation comparison of Nissan YD25DDTi engine prices from trusted UK suppliers. Our registration lookup confirms your exact fitment before any quotes are sent, ensuring you receive accurate pricing for your specific Navara or Pathfinder. With reconditioned YD25DDTi units starting from an estimated £1,800, comparing takes two minutes and could save you hundreds on your commercial vehicle repair.
Vetted UK Specialists
Vetted UK specialists for YD25DDTi replacements
Minimum 12-Month Warranty
Minimum 12-month warranty on reconditioned and rebuilt options
Nationwide Delivery
Nationwide delivery plus supply and fit availability
Expert Support
Secure enquiry - no spam. Quotes only from vetted UK engine specialists.
Secure enquiry - no spam. Quotes only from vetted UK engine specialists.
Get Free YD25DDTi Engine Quotes