Mitsubishi Engine Replacement -Supply & Fit Available UK-Wide

A replacement Mitsubishi engine typically costs between £1,500 and £3,500 for a reconditioned unit, depending on the model. A 2.2-litre 4N14 diesel for an Outlander often falls around £2,200–£2,800, while a 3.2-litre 4M41 for a Shogun ranges from £2,500–£3,800. Fitting adds £500–£1,000, with total supply-and-fit costs from £2,000–£4,500. For budget options, a used engine can start from £800–£1,500, but we always recommend asking about warranty and mileage history.

Four key factors influence cost: engine complexity (common 4N14 vs rare 4M40), condition (used vs reconditioned vs rebuilt), vehicle age and accessibility (L200 engine bays are easier than Outlander PHEV), and supply-only vs supply-and-fit. Location matters too – London and South East garages typically charge 20–30% more for fitting. The best way to get a fair price is to compare quotes from different UK specialists on the same engine code.

In most cases, yes – especially if the chassis, gearbox, and 4x4 system are in good shape and the vehicle has genuine sentimental or commercial value. A rebuilt engine with upgraded components (uprated timing chains, revised oil rings, new turbos) often outlasts the original. The alternative – buying a used replacement vehicle of the same age – carries unknown history and often similar risks. For L200s, Shoguns, and Outlander PHEVs that hold strong used values, replacement is almost always the smarter financial decision.

Full supply and fit includes sourcing a correctly matched engine (on code, not just model), removing the old unit, installing the replacement, and fitting new oils, filters, and gaskets. Most specialists include a 12-month parts and labour warranty, plus disposal of your old engine (core return). A thorough test-drive and final inspection should complete the service. Fitting costs typically add £500–£1,000 to the engine price.

For common models like the L200 (4N15), Outlander (4N14), or ASX (4B11), a straightforward swap takes 3–5 working days. More complex models – Shogun with 4M41, or any PHEV model – can take 5–7 days due to additional systems (transfer box, hybrid cabling). The biggest variable is engine availability: our network stocks commonly replaced codes like 4D56, 4B12, and 4N15. Always ask your chosen specialist for a confirmed lead time before booking.

Yes – every engine supplied through EngineMarket carries a minimum 12-month unlimited mileage warranty. Rebuilt and remanufactured units often offer extended 24-month coverage, while used engines typically come with 3–6 months. The warranty covers major internal components: crankshaft, pistons, timing chain/belt, oil pump, cylinder head (crack-free). Always confirm exact terms – some warranties exclude fitting work or require a VAT receipt.

Choose a used engine (£800–£1,500) if you need a temporary fix, are selling the vehicle soon, or run a low-value older Mitsubishi with minimal investment risk. Choose reconditioned (£1,800–£3,500 plus fitting) if you plan to keep the vehicle for 2+ years or 60,000 miles – the upfront premium buys new piston rings, bearings, gaskets, and a 12-month warranty. For known failure-prone engines (4N14 HP pump, 4B11 timing chain, 4M40 thrust washers), a reconditioned unit with upgraded parts is strongly recommended.

EngineMarket connects you with a UK-wide network of independent Mitsubishi diesel, petrol, and PHEV specialists. While some regions have historic concentrations (West Midlands for L200s, South West for Shoguns), our marketplace model means you can compare nearby fitting garages in one place. Simply enter your registration and postcode – we match you with suppliers who stock your specific engine code and offer supply-only or supply-and-fit nationally. Delivery is available UK-wide even if no local specialist stocks your engine.

The five most common failures driving UK replacement demand are: 4N14 HP pump disintegration (metal contamination of entire fuel system); 4B11/4B12 timing chain stretch (rattling on start-up, eventual jump); 4M40/4M41 crankshaft thrust washer failure (axial crank movement, block scrap); 4A92/3B20 oil control ring seizure (1 litre per 600 miles consumption); and 4N15 EGR/turbo clogging (loss of power, DPF block). Early detection rarely prevents these from becoming catastrophic – replacement is the most common outcome.

Compare at least three quotes – prices for the same engine code can vary by £1,000+ across UK suppliers. Consider used (£800–£1,500) for tight budgets, but reconditioned with upgraded parts (£1,800–£3,500) offers better long-term value. Ask suppliers to break down supply-only vs supply-and-fit, and confirm whether delivery, fitting, and VAT are included in the quoted price. For L200s and Shoguns, weekday fitting slots can cost less than weekend bookings. Use our comparison tool to check live prices across our network.