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Mitsubishi Outlander 2.4 MIVEC Specialists

Mitsubishi Outlander 2.4 4B12 MIVEC Engine Replacement Compare Prices & Get Quotes

Looking for a Mitsubishi Outlander 2.4 MIVEC engine replacement- Get quotes from trusted UK Outlander 2.4 4B12 engine specialists today. Compare prices on reconditioned, rebuilt and used engines for your Mitsubishi Outlander 2.4 MIVEC - supply & fit available.

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Mitsubishi Outlander 2.4 4B12 MIVEC Engine
from£1,500 to £3,500
  • Usedfrom £400
  • Reconditionedfrom £1,200
  • Common codes4B12
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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Mitsubishi Outlander 2.4 MIVEC Engine History & Specs at a Glance

The Mitsubishi Outlander 2.4 MIVEC, powered by the 4B12 engine, has been the core petrol offering across multiple Outlander generations. It is a naturally aspirated 2.4-litre four-cylinder from the Global Engine Alliance, used extensively in UK-market Outlanders from the second generation onward as a reliable, family-friendly SUV powertrain.

Mitsubishi Outlander 2.4 MIVEC
  1. 2007

    4B12 MIVEC 2.4-litre petrol engine introduced in the second-generation Outlander (ZG/ZH), producing 170 hp and 226 Nm of torque, paired with a CVT or 4WD system .

  2. 2012

    Third-generation Outlander (ZK/ZL) adopts the same 4B12 engine, now rated at 167 hp with minor emissions and economy refinements; the engine remains the primary petrol option alongside the 2.2 DI-D diesel and later the PHEV .

  3. 2018

    Facelift for the third-generation Outlander, with 4B12 continuing in petrol models; subtle tuning adjustments maintain power output around 167 hp .

  4. 2021

    Fourth-generation Outlander introduces a revised 2.4-litre MIVEC engine, still designated 4B12, now used primarily in the PHEV hybrid system producing 133 hp (combined system output significantly higher) .

Every engine fitted to the Mitsubishi Outlander 2.4 MIVEC is covered below, with UK rebuilt pricing and known failure points - including the 4B12 petrol, 4N14 diesel, and PHEV hybrid powertrain for Outlander 2.4 models.

Engine Codes & Pricing

Mitsubishi Outlander 2.4 MIVEC Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

4B12 — 2.4L Petrol MIVEC (2007-present) engine

4B12 — 2.4L Petrol MIVEC (2007-present)

Power Output
167-170 hp
Years Fitted
2007-present

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Common Problems

Mitsubishi Outlander 2.4 MIVEC Engine Problems Repair Cost vs Replacement

The 4B12 MIVEC engine is generally a reliable, well-engineered unit - one of the better petrol engines in the Mitsubishi Outlander 2.4 MIVEC range. Most 4B12 engines cover high mileages without significant problems, provided they are serviced with the correct oil grade and interval. When failures do occur, they tend to be predictable rather than catastrophic. Rebuilt engines through EnginesMarket include upgraded components (such as improved timing chain tensioners and piston rings) addressing the original weak points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Timing Chain Tensioner Wear

Affected
Mitsubishi Outlander 2.4 MIVEC (4B12, all years)
Typical failure mileage
80,000-150,000 miles
Root cause
Timing chain tensioner wear leads to insufficient hydraulic pressure on cold start, allowing chain slack and a characteristic rattle for 1-3 seconds. The 4B12 uses a timing chain designed to last the engine's life, but tensioner deterioration can cause chain jump and valve/piston contact - catastrophic if ignored .

Repair options

Repair tierDealer priceSpecialist price
Tensioner replacement (preventative)£500-£800£300-£500
Full chain kit replacement£900-£1,500£600-£1,000
Full engine rebuild/replacement£2,500-£4,500£1,800-£3,500 (should match Section 4's rebuilt figure for 4B12)
Our recommendation
The 4B12 is a sound engine, and early intervention - replacing the chain tensioner at the first sign of cold-start rattle - is significantly cheaper than a full chain replacement or rebuild. If the chain has already jumped and bent valves, a rebuilt engine with the warranty is the safer long-term choice over a used engine of unknown history.
-> Compare rebuilt 4B12 Mitsubishi Outlander 2.4 MIVEC engine prices

Oil Consumption & Piston Ring Sticking

Affected
Mitsubishi Outlander 2.4 MIVEC (4B12, higher-mileage examples, typically 100,000+ miles)
Typical failure mileage
100,000-180,000 miles
Root cause
Piston rings can become stuck with carbon deposits due to old oil, short trips, or sub-standard oil grades. This causes oil to bypass the rings and burn in the combustion chamber, leading to blue smoke, increased oil consumption, and potential catalyst damage .

Repair options

Repair tierDealer priceSpecialist price
Decarbonisation flush£200-£400£150-£250
PCV valve replacement£150-£250£100-£150
Piston ring replacement£2,500-£4,000£1,800-£3,000
Full engine rebuild/replacement£2,800-£4,500£1,800-£3,500
Our recommendation
Before committing to a rebuild, try the low-cost options first - a good engine flush, PCV valve replacement, and fresh high-quality oil of the correct grade can sometimes free sticking rings. If consumption persists, weigh the replacement cost against the vehicle value and your ownership horizon.
-> Compare rebuilt 4B12 Mitsubishi Outlander 2.4 MIVEC engine prices

Cold-Start Stalling & Idle Issues

Affected
Mitsubishi Outlander 2.4 MIVEC (4B12, all years)
Typical failure mileage
40,000-120,000 miles
Root cause
Multiple owner reports suggest the 4B12 can suffer from cold-start stalling, where the engine starts, revs briefly to around 1,500 rpm, then drops to 700 rpm and stalls. Common fixes include throttle body cleaning, fuel filter replacement, and PCV valve replacement .

Repair options

Repair tierDealer priceSpecialist price
Throttle body cleaning£150-£250£80-£150
Fuel filter replacement£200-£350£120-£200
PCV valve replacement£150-£250£100-£150
Throttle body adaptation reset£80-£150£50-£100
Our recommendation
Start with the cheapest fix - many owners report success with throttle body cleaning and adaptation reset. If the issue persists, change the fuel filter (the in-tank strainer can clog with age) and inspect the PCV system. These are minor repairs that should not trigger a replacement decision.
-> Compare rebuilt 4B12 Mitsubishi Outlander 2.4 MIVEC engine prices

Don't Let Engine Failure Write Off Your Mitsubishi Outlander 2.4 MIVEC

The 4B12 engine is generally robust, but when failure does strike - whether timing chain wear, oil consumption, or persistent stalling - the cost of dealer repair can quickly exceed the vehicle's value. EnginesMarket compares specialist quotes for rebuilt, reconditioned and used Outlander 2.4 MIVEC engines with a minimum 12-month warranty, nationwide delivery, and supply & fit options - so you can make an informed decision based on your vehicle's true value and your ownership horizon.

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FAQ

Mitsubishi Outlander 2.4 MIVEC Engine ReplacementFrequently Asked Questions

Everything Mitsubishi Outlander 2.4 4B12 MIVEC owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Mitsubishi Outlander 2.4 MIVEC Engine Prices Today

Comparing quotes for your Mitsubishi Outlander 2.4 MIVEC engine replacement is free, no-obligation, and specific to your exact vehicle and engine code. Whether you need a used unit for a budget repair or a fully rebuilt 4B12 with an upgraded timing chain, our network of UK specialists will send you transparent, itemised quotes with a minimum 12-month warranty and nationwide supply & fit options. Enter your registration above or use the button below to start your quote comparison today.

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