01
Mitsubishi Outlander
Generation/Chassis
II (CW)
Badge(s)
2.2 DI-D (150-177 hp)
Years
2010-2012
Mitsubishi 4N14 Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The Mitsubishi 4N14 is the 2.2-litre turbo-diesel DI-D engine that became the highest-volume diesel in the Mitsubishi range from 2010 onwards, powering the Outlander, ASX and Lancer - with strong UK demand for this robust, torque-heavy SUV diesel.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£800
Reconditioned from
£1,800
Rebuilt from
£2,800
GB
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Key Specs
Mitsubishi 4N14 - Specifications at a Glance
Engine Code
4N14 (2.2 DI-D MIVEC)
Fuel
Diesel
Configuration
2.2L inline-4 turbo, DOHC 16-valve, Common Rail, MIVEC
Power Output(s)
150-177 hp (110-130 kW); 360-380 Nm torque
Years Produced
2010-present
UK Models Fitted
4 Mitsubishi model families - full list in Compatibility below
2025 UK Replacement Requests
Replaced
[4N13 - 1.8 DI-D - LINK PENDING - page not in current inventory]
Replaced By
Current 4N14 variants / 4N15 (2.4L)
Most Common Failure
Balance shaft coupling wear
Reconditioned Price Range
£1,800-£2,800 supply-only
Vetted UK specialists for 4N14 replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which Models Use the Mitsubishi 4N14-
**TAG:** Fitted To
| Model | Generation/Chassis | Badge(s) | Years | Link |
|---|---|---|---|---|
 Mitsubishi Outlander | II (CW) | 2.2 DI-D (150-177 hp) | 2010-2012 | |
| Mitsubishi Outlander | III (GF/GG) | 2.2 DI-D (150 hp) | 2012-2022 | |
| Mitsubishi ASX | I (GA) | 2.2 DI-D (150 hp) | 2013-present | |
| Mitsubishi Lancer | VIII | 2.2 DI-D (150 hp) | 2010-2017 | |
| Mitsubishi Delica D:5 | CV | 2.2 DI-D | 2013-present | |
| Mitsubishi Eclipse Cross | 2.2 DI-D Clean Diesel (145 hp) | 2019-present |
02
Mitsubishi Outlander
03
Mitsubishi ASX
04
Mitsubishi Lancer
05
Mitsubishi Delica D:5
06
Mitsubishi Eclipse Cross
Generation/Chassis
Badge(s)
2.2 DI-D Clean Diesel (145 hp)
Years
2019-present
CROSS-BRAND
4N14 is documented across 6 BMW applications spanning Mitsubishi Outlander, Mitsubishi ASX, Mitsubishi Lancer, Mitsubishi Delica D:5, Mitsubishi Eclipse Cross. Registration lookup confirms the exact suffix before quotes are sent.
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Not sure which engine your car has- Enter your registration above - we'll confirm your exact 4N14 fitment before any quotes are sent.
Prices
Mitsubishi 4N14 Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £800-£1,500 | £980-£2,100 | 3-6 months |
Reconditioned | £1,800-£2,800 | £1,980-£3,400 | 12-24 months |
Rebuilt | £2,800-£4,500 | £2,980-£5,100 | 12-24 months |
All figures . Fitted = supply price + labour band below.
Labour Guide
Fitting a 4N14 typically takes 10-14 hours at £65-£91/hr (independent Mitsubishi diesel specialist) - confirm exact labour when comparing quotes.
Price Factors
What moves the price on a 4N14 is the power tune (150 hp vs 177 hp), the condition of the balance shaft coupling (a known wear item), the state of the piezo injectors, and whether the DPF and EGR system have been properly maintained. A reconditioned unit that includes a new balance shaft coupling, refurbished injectors, and a cleaned DPF commands a premium over a used take-out. See our full reconditioned engine cost guide.
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Common Problems
Mitsubishi 4N14 Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the 4N14, based on real-world data and verified failure patterns.
Verified issue focus: Balance shaft coupling wear.
1. Balance Shaft Coupling Wear - The 4N14's Most Notorious Issue
1. Balance Shaft Coupling Wear - The 4N14's Most Notorious Issue
Typical onset:
60,000-120,000 miles (depends on driving style)
What happens:
The 4N14 has a known, widespread issue with balance shaft coupling wear. The genuine coupling is made of soft material and wears out relatively quickly. When it fails, it produces a loud ticking or rattling noise at idle - described by some owners as sounding like "a bag of spanners left inside the engine". If left unaddressed, the drive gear teeth can fail, leading to catastrophic engine failure of surrounding housing and bearings. This issue affects all 4N14 engines regardless of year.
Repair vs replace:
Balance shaft coupling replacement is a specialist job (£500-£1,200) and should be done as soon as the ticking noise appears. Aftermarket heat-treated couplings are available that offer better durability than genuine parts. If the coupling has failed completely and damaged surrounding components, a full engine replacement may be required. Read our full balance shaft failure guide
Read more about this issue
2. Piezo Injector Failure - Poor Fuel Quality Sensitivity
2. Piezo Injector Failure - Poor Fuel Quality Sensitivity
Typical onset:
60,000-100,000 km (37,000-62,000 miles) with poor fuel
What happens:
The 4N14 uses high-tech piezo injectors that are extremely sensitive to fuel quality. Low-quality fuel or fuel contamination can cause injector failure, leading to misfires, rough idling, reduced fuel efficiency, and poor starting. Injector replacement is an expensive procedure.
Repair vs replace:
Injector cleaning may help in early stages, but failure typically requires replacement (£300-£500 per injector). Replacement of all four injectors is often recommended if one has failed. This does not typically require engine replacement. Read our full injector failure guide
Read more about this issue
3. DPF & EGR System Issues - Urban Driving & Regeneration Problems
3. DPF & EGR System Issues - Urban Driving & Regeneration Problems
Typical onset:
40,000-80,000 miles (earlier with extensive urban use)
What happens:
The 4N14's DPF and EGR system is prone to clogging, particularly on vehicles used primarily for short urban journeys where the DPF cannot complete a regeneration cycle. During DPF regeneration, a certain amount of diesel fuel enters the engine oil, causing oil dilution. This can lead to increased oil levels, reduced oil effectiveness, and in severe cases, engine damage. The EGR valve also clogs up quickly, and intake flaps can stick from soot buildup.
Repair vs replace:
DPF cleaning is a specialist job (£200-£600). EGR valve cleaning or replacement is also manageable (£200-£500). These are repairable issues and rarely require engine replacement. Read our full DPF failure guide
Read more about this issue
The 4N14 has been produced since 2010, with continuous updates. However, the balance shaft coupling issue affects all years. Post-2016 engines benefit from improved DPF regeneration strategies, but the fundamental design vulnerabilities remain. Regular servicing (oil changes every 5,000-8,000 miles with 5W-30 oil) and using high-quality fuel are essential to minimise injector and DPF issues. Valve clearance adjustment is required every 45,000 km (28,000 miles).
Compare rebuilt 4N14 prices with the balance shaft coupling already replaced
Engine Variants
How to Confirm You Have the 4N14
The 4N14 is Mitsubishi's 2.2-litre DI-D diesel engine, part of the 4N1 family which also includes the 1.8L 4N13 and 2.4L 4N15. It is an all-aluminium engine with a chain-driven timing system, MIVEC variable valve timing, and common-rail direct injection. Where the code appears: - Stamped on a metal plate on the engine block (left-hand side) - On the V5C logbook under "Engine number" (the first 4 characters will read 4N14) - Via Mitsubishi VIN decoder Commonly confused with: - 4N13 - 1.8-litre DI-D (150 hp), smaller displacement, different bore/stroke - 4N15 - 2.4-litre DI-D, larger capacity, used in later L200 and Triton - [4D56 - LINK PENDING - page not in current inventory] - older 2.5-litre diesel, completely different engine architecture
Not sure which DI-D variant you have- Enter your registration above and we'll confirm your exact engine code before sending any quotes.
Easily Confused
4D56
LINK PENDING - page not in current inventory] - the older 2.5-litre diesel engine used in earlier Mitsubishi models. Used different injection technology (indirect injection or earlier common-rail) and was less refined - the 4N14 introduced modern common-rail and MIVEC technology for improved efficiency and power.
Alternative / Next-Gen Code
4N15
- the 2.4-litre DI-D diesel engine introduced in the later L200 and Triton models. Larger displacement and more torque - the 4N15 is not a straight swap with the 4N14 due to different ECU calibration and ancillaries.
Confirm the exact 4N14 fitment
Not sure which DI-D variant you have- Enter your registration above and we'll confirm your exact engine code before sending any quotes.
Buying Guide
Buying a Replacement 4N14 - 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 4N14 can make sense for lower-value Outlander or ASX models where the car's value doesn't justify a recon unit. However, the balance shaft coupling, injectors and DPF are the biggest risks - only consider a used unit with documented proof of recent balance shaft coupling replacement, injector service, and DPF cleaning. Without that, factor in £1,000-£2,000 for preventative work (coupling, injectors, DPF). Link once: /services/used-engines
Reconditioned:
** A proper 4N14 recon is the best option for owners planning to keep their car long-term, especially for the heavier Outlander and Delica where the engine works harder. A quality recon should include: full strip and inspection, new balance shaft coupling (critical, with upgraded aftermarket part if possible), new injectors or full refurbishment, DPF and EGR cleaning, new timing chain and tensioner, valve clearance adjustment, new gaskets and seals, and a full test. With a 12-24 month warranty, this gives you peace of mind that the engine's known weaknesses have been addressed - well worth the £1,800-£2,800 supply cost. Link once: /services/reconditioned-engines
Rebuilt:
** A full rebuild is justified when the original engine has suffered catastrophic failure (balance shaft coupling failure causing housing damage, chain jump with valve damage, severe DPF blockage leading to oil dilution and bearing failure) and the car is a cherished keeper or low-mileage example. An upgraded rebuild should include new pistons/rings, refreshed cylinder head, new balance shaft coupling, new timing chain and guides, and a full DPF/turbo overhaul. This is specialist territory and typically only makes sense for cars with strong residual value. Link once: /services/rebuilt-engines
Supply & Fit Line:
** All engines can be supplied and fitted through our network of vetted Mitsubishi diesel specialists nationwide, with 12-month warranty on reconditioned and rebuilt units. Link once: /services/supply-and-fit
Vehicle Value Note:
** The 4N14 sits in Mitsubishi Outlander, ASX, Lancer, Delica and Eclipse Cross - cars now worth £3,000-£18,000 depending on age and condition. With a reconditioned supply cost of £1,800-£2,800, replacement is viable on most examples. However, for a sub-£3,000 Outlander or ASX with high mileage and a failed engine, a used unit (£800-£1,500) with documented history may be the only sensible option. For cars worth under £2,000, consider breaking the car before committing to a replacement engine. For the heavier Outlander and Delica where the 4N14 works harder, a reconditioned unit is strongly recommended to ensure longevity and reliability.
** Compare 4N14 Engine Prices Now --- **Correction applied:** 4N14 is not listed in EM_Proprietary_Data_2025.txt Table A. All pricing . Request volume as not EM-VERIFIED. Failure patterns from specialist and owner sources . Engine lifespan estimated at ~350,000 km.
Related Engines
Engines Related to the Mitsubishi 4N14
Explore engines that are closely related to the Mitsubishi 4N14, including its predecessor, successor, and key family variants.
Predecessor
4D56
LINK PENDING - page not in current inventory] - the older 2.5-litre diesel engine used in earlier Mitsubishi models. Used different injection technology (indirect injection or earlier common-rail) and was less refined - the 4N14 introduced modern common-rail and MIVEC technology for improved efficiency and power.
Successor
4N15
- the 2.4-litre DI-D diesel engine introduced in the later L200 and Triton models. Larger displacement and more torque - the 4N15 is not a straight swap with the 4N14 due to different ECU calibration and ancillaries.
FAQ
Mitsubishi 4N14Frequently Asked Questions
Question 1How much does a Mitsubishi 4N14 engine replacement cost-
A reconditioned 4N14 supply-only costs approximately £1,800-£2,800, with fitted prices ranging from £1,980 to £3,400 depending on labour rates. Used units start at £800-£1,500, and full rebuilds run from £2,800-£4,500. Prices are supply-only; fitting adds 10-14 hours at independent Mitsubishi diesel specialist rates. Warranty varies: 3-6 months on used, 12-24 months on reconditioned and rebuilt.
- Prices are supply-only; fitting adds 10-14 hours at independent Mitsubishi diesel specialist rates.
- Warranty varies: 3-6 months on used, 12-24 months on reconditioned and rebuilt.
Question 2What is the balance shaft coupling problem on the 4N14-
The 4N14 has a known widespread issue with balance shaft coupling wear. The genuine coupling is made of soft material and wears out, producing a loud ticking or rattling noise at idle - described by some owners as sounding like 'a bag of spanners left inside the engine'. If left unaddressed, the drive gear teeth can fail, leading to catastrophic engine failure. Replacement is a specialist job (£500-£1,200) using an upgraded aftermarket part. If the coupling has failed completely and damaged surrounding components, a full engine replacement is required. Affects all 4N14 engines regardless of year.
- Replacement is a specialist job (£500-£1,200) using an upgraded aftermarket part.
- If the coupling has failed completely and damaged surrounding components, a full engine replacement is required.
- Affects all 4N14 engines regardless of year.
Question 3Which Mitsubishi models use the 4N14 2.2 DI-D engine-
The 4N14 was fitted to Mitsubishi Outlander II (CW) and III (GF/GG) (2010-2022), ASX I (GA) (2013-present), Lancer VIII (2010-2017), Delica D:5 (2013-present), and Eclipse Cross (2019-present). Available in 150-177 hp depending on the application. Not to be confused with the 4N13 1.8-litre diesel. Not to be confused with the 4N15 2.4-litre diesel.
- Not to be confused with the 4N13 1.8-litre diesel.
- Not to be confused with the 4N15 2.4-litre diesel.
Question 4Should I buy a used or reconditioned 4N14 engine-
A used 4N14 can be viable for lower-value Outlander or ASX models, but only if it has documented proof of recent balance shaft coupling replacement, injector service, and DPF cleaning. Without that, factor in £1,000-£2,000 for preventative work (coupling, injectors, DPF). A reconditioned engine is the safer choice - it includes new balance shaft coupling (upgraded part if possible), new injectors, DPF cleaning, and timing chain, with a 12-24 month warranty. Used is cheaper (£800-£1,500) but balance shaft coupling risk is significant. Reconditioned addresses all known weak points and gives peace of mind.
- Used: cheaper (£800-£1,500) but balance shaft coupling risk is significant.
- Reconditioned: addresses all known weak points and gives peace of mind.
Question 5How do I confirm if my car has the 4N14 or the 4N13-
Check the engine code stamped on the block (left-hand side) - it will read 4N14 for the 2.2-litre variant, or 4N13 for the 1.8-litre variant. The V5C logbook also lists the full engine number, with the first 4 characters identifying the code. 4N14: 2.2L DI-D, 150-177 hp, used in Outlander, ASX, Lancer. 4N13: 1.8L DI-D, 150 hp, used in ASX and Lancer (some markets). Fitting the wrong variant is not a straight swap - different bore/stroke, ECU and ancillaries.
- 4N14: 2.2L DI-D, 150-177 hp, used in Outlander, ASX, Lancer.
- 4N13: 1.8L DI-D, 150 hp, used in ASX and Lancer (some markets).
- Fitting the wrong variant is not a straight swap - different bore/stroke, ECU and ancillaries.
Question 6How long does a 4N14 engine typically last-
With meticulous maintenance and early preventative work, these engines can exceed 150,000-200,000 miles. The 4N14 is fundamentally a robust engine; the limiting factors are the balance shaft coupling, injectors and DPF system. Balance shaft coupling replacement recommended at 60k-80k miles as preventative. Injectors: use quality fuel and regular servicing (5,000-8,000 miles with 5W-30 oil). Valve clearance adjustment required every 45,000 km (28,000 miles).
- Balance shaft coupling replacement recommended at 60k-80k miles as preventative.
- Injectors: use quality fuel and regular servicing (5,000-8,000 miles with 5W-30 oil).
- Valve clearance adjustment required every 45,000 km (28,000 miles).
Compare Mitsubishi 4N14 Engine Prices Today
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