Mitsubishi L 400 Engine ReplacementCompare Prices & Save

A rebuilt Mitsubishi L 400 engine typically costs £950-£2,400 for the common 4D56 diesel, with 4M40 units ranging £1,200-£2,800. Supply & fit adds £450-£850 depending on location and variant.

• 4D56 rebuilt engines from £950 supply-only across UK network
• 4M40 Super Exceed engines command premium pricing due to torque output
• Supply & fit service available nationwide through vetted commercial specialists
• Prices include upgraded components addressing common 4D56/4M40 failure points

The primary engine codes for UK Mitsubishi L 400 models are 4D56 (2.5L diesel), 4D56T (turbo), 4M40 (2.8L diesel) and 4G64 (2.4L petrol), with variant-specific compatibility.

• 4D56/4D56T power most Van, Wagon, GL and GLX variants 1994-2004
• 4M40/4M40T fitted to Super Exceed and heavy-duty applications 1997-2004
• 4G64 petrol rare in UK but available for early GL/GLX models
• Use our free engine code checker with your registration for instant compatibility

Yes, rebuilt 4D56 engines from our UK network include upgraded timing components and injector calibration, with a minimum 12-month unlimited mileage warranty for commercial peace of mind.

• Rebuilt units replace timing belt, tensioner and wear items proactively
• Injector pump calibration included to prevent rough running and power loss
• 12-month unlimited mileage warranty standard across specialist network
• Ideal for commercial Van/Wagon operators needing reliable, warrantied power

Engine swaps between 4D56 and 4M40 are possible but require ECU, transmission and 4WD system compatibility checks - consult a Mitsubishi commercial specialist before proceeding.

• 4M40 is physically larger and produces higher torque than 4D56
• Transmission bell housing, mounts and 4WD transfer case must match
• ECU and wiring harness modifications often required for compatibility
• Professional assessment recommended to avoid costly fitment issues

Typical turnaround is 3-5 working days for supply-only rebuilt engines, with supply & fit appointments scheduled within 7-10 days depending on location and variant complexity.

• Rebuilt engines dispatched within 48 hours of order confirmation
• 4WD and camper variants may require additional compatibility verification
• Supply & fit appointments coordinated through UK commercial specialist network
• Nationwide delivery available on all engine types with tracking

Every rebuilt, reconditioned or remanufactured Mitsubishi L 400 engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty from vetted UK specialists.

• 12-month unlimited mileage warranty standard on rebuilt units
• Warranty covers parts and labour at any UK network specialist location
• Extended warranty options available for commercial fleet applications
• Always confirm exact terms with your chosen supplier before ordering

Key signs include persistent knocking, excessive blue/white smoke, loss of power despite servicing, or catastrophic timing belt failure - get a free diagnostic consultation to confirm.

• Knocking noises often indicate bearing wear requiring short block rebuild
• Blue smoke suggests turbo oil seal or piston ring wear on high-mileage units
• White smoke and coolant loss may signal head gasket failure on 4M40
• Timing belt failure causes immediate valve damage requiring full replacement

Yes, 4WD Mitsubishi L 400 engines require compatibility verification with the transfer case, mounting points and drivetrain - our specialists confirm 4WD fitment before dispatch.

• 4D56T and 4M40T turbo variants commonly fitted to 4WD models
• Transfer case mounting points and engine mounts differ from 2WD
• 4WD compatibility verification included with every quote request
• Essential for off-road, camper and commercial 4x4 applications

Yes, supply & fit is available nationwide through our network of vetted Mitsubishi commercial specialists, with typical added cost of £450-£850 depending on location and variant.

• Supply & fit includes removal, fitting, fluids and initial run-in
• 4WD and camper variants receive compatibility verification during fitment
• Nationwide network minimises vehicle downtime for commercial operators
• Book appointments directly through your chosen specialist after quote comparison

Used engines are low-mileage donor units with basic warranty; rebuilt engines replace all wear items with upgraded components; reconditioned units undergo near-new restoration with full testing.

• Used: budget option, request compression test and service history
• Rebuilt: best value for commercial use, upgraded timing/injector components
• Reconditioned: near-new standard, ideal for premium Super Exceed variants
• All options include minimum 12-month warranty through EngineMarket network