Mitsubishi L200 2.5 DI-D Engine ReplacementCompare Prices & Get Quotes
Find trusted UK Mitsubishi L200 2.5 DI-D diesel engine specialists and compare prices on reconditioned, rebuilt and used 4D56 units. Enter your registration to get instant quotes today from our vetted nationwide supplier network.
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Variant History
Mitsubishi L200 2.5 DI-D (4D56) Engine History & Specs at a Glance
The Mitsubishi L200 2.5 DI-D launched in 2005 as part of the fourth-generation L200 (KA/KB series), powered by the venerable 4D56 turbo-diesel engine. This 2.5-litre common-rail unit remained the backbone of the UK L200 range through multiple power outputs until the introduction of the 2.2-litre 4N14 engine in the fifth-generation L200 around 2019.
2005
4D56 2.5-litre common-rail turbo diesel introduced with 128 hp in L200 KA/KB series
2007
Higher-output 136 hp version introduced, becoming the UK best-seller
2010
Facelift with Euro 5 emissions compliance; 167 hp variant added
2015
178 hp high-output 4D56 variant introduced before 4N14 replacement
2019
4N14 2.2-litre engine replaces 4D56 in fifth-generation L200
Every engine fitted to the Mitsubishi L200 2.5 DI-D is covered below, with UK rebuilt pricing and known failure points.
The Mitsubishi 4D56 2.5 DI-D is a durable workhorse engine, but it has well-documented weaknesses - DPF clogging, fuel system issues, and ECU problems are the primary failure points that drive replacement decisions for L200 2.5 DI-D owners. Rebuilt 4D56 engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Common failure points and repair options
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DPF Clogging
Affected
Mitsubishi L200 2.5 DI-D (4D56, 2005-2019, all power outputs)
Typical failure mileage
40,000-60,000 km (25,000-37,000 miles) for urban-use vehicles; 80,000-100,000 km (50,000-62,000 miles) for mixed-use
Root cause
The diesel particulate filter in the 2.5 DI-D engine does not reach sufficient temperatures for passive regeneration during short trips. This leads to soot accumulation, increased exhaust back pressure, reduced engine performance, and increased fuel consumption.
Repair options
Repair tier
Dealer price
Specialist price
Preventative - DPF regeneration service
£200-£350
£100-£200
Medium - DPF professional cleaning
£400-£700
£250-£500
Full Replacement - DPF replacement
£1,200-£2,000
£800-£1,400
Full Engine Replacement - rebuilt/reconditioned
£2,500-£4,000
£2,195+ (matches Section 4 rebuilt figure)
Our recommendation
If your 4D56 has DPF-related performance loss but no engine damage, a professional DPF clean or replacement is the smarter financial move. If the DPF blockage has caused turbo damage or injector failure, a rebuilt unit with upgraded components and full warranty is a better long-term investment than a patch-up repair.
120,000-160,000 km (75,000-100,000 miles); earlier issues from 80,000 km (50,000 miles) with poor fuel quality
Root cause
The high-pressure fuel pump and injectors in the 4D56 can fail due to poor fuel quality, infrequent filter changes, or wear on internal components. Symptoms include starting difficulties, loss of power, irregular engine running, or complete engine shutdown.
Repair options
Repair tier
Dealer price
Specialist price
Minor - Injector cleaning or refurbishment
£300-£600
£200-£400
Medium - Injector replacement
£700-£1,200
£500-£900
Major - High-pressure pump replacement
£1,200-£2,000
£800-£1,500
Full Engine Replacement - rebuilt/reconditioned
£2,500-£4,000
£2,195+
Our recommendation
If your 4D56 has injector issues but the HPFP is healthy, replacing injectors is cost-effective. If the HPFP has failed and metal debris has contaminated the fuel system, assess the total repair cost against a rebuilt engine - if the repair exceeds 60% of a rebuilt unit, replacement is often the better long-term option.
The engine control unit in the 4D56 can develop faults due to defective capacitors, corroded contacts, or software errors. Symptoms include starting problems, power loss, irregular engine running, or complete engine shutdown with the engine running in limp mode.
Repair options
Repair tier
Dealer price
Specialist price
Minor - Diagnostic scan and software update
£100-£250
£80-£150
Medium - ECU repair
£400-£800
£300-£600
Major - ECU replacement
£800-£1,500
£600-£1,200
Our recommendation
ECU failure is often repairable rather than requiring full replacement. Always have a specialist diagnose before committing to a new ECU - many ECU issues can be resolved with software updates or component-level repair.
Don't Let Engine Failure Write Off Your Mitsubishi L200 2.5 DI-D
A rebuilt 4D56 engine through EnginesMarket comes with upgraded components addressing the original DPF, fuel system, and ECU failure points - plus a minimum 12-month unlimited-mileage warranty on every unit. Compare genuine UK specialist prices today, not dealer premiums.
Everything Mitsubishi L200 2.5 DI-D owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.
A rebuilt 4D56 engine supply-only typically costs £2,195+, with used units from £825-£1,895 and reconditioned from £1,125-£1,895 [THIRD-PARTY - Replacement Engines UK, Ideal Engines]. Fitted costs add £650-£910 labour at an independent specialist, bringing the total to £2,800-£3,500 for a fitted rebuilt engine.
The most common early warning is reduced engine power, increased fuel consumption, and black exhaust smoke. You may also notice the engine jerking at idle or the engine management light illuminating with DPF-related fault codes (P2002 and P2004 are common).
For a 2010-2016 L200 2.5 DI-D valued at £6,000-£16,000, a rebuilt engine at £2,195+ supply-only (£2,800-£3,500 fitted) is typically well within the vehicle's value. For very early 2005-2008 examples valued under £4,000, a used engine is often more cost-effective than a rebuilt unit.
A typical 4D56 engine replacement takes 10-14 hours of labour at an independent specialist. Supply-only engines are usually delivered within 3-5 working days, with supply-and-fit turnaround typically 5-7 days from booking to collection.
The 4D56 engine was offered in multiple power outputs over its production life: 128 hp (early 2005-2007), 136 hp (2007-2015, UK best-seller), 167 hp (2010-2015), and 178 hp (2015-2019). The higher-output versions use different turbos and ECU calibrations but share the same 2,477 cc block.
With regular maintenance including timely timing belt changes, fuel filter changes, and appropriate driving to allow DPF regeneration, the 4D56 can achieve 150,000-200,000 miles. Timing belt replacement is critical - the 4D56 is an interference engine where belt failure causes valve and piston damage.
Comparing quotes for your Mitsubishi L200 2.5 DI-D (4D56) engine replacement takes less than a minute and is completely free with no obligation. Whether you need a used unit to keep costs down or a fully rebuilt 4D56 with upgraded components and 12-month warranty, our UK specialist network delivers transparent, itemised pricing. Enter your registration above to get started.
2,500+2,500+ Mitsubishi L200 engines supplied through our network
12-Month12-Month Warranty on every rebuilt 4D56 L200 engine