Mitsubishi L100 Engine ReplacementCompare Prices & Save

Rebuilt Mitsubishi L100 engines typically cost £2,200-£3,100 supply-only, depending on engine code and variant. The common 4G63 petrol ranges £2,400-£2,800, while the 4D68 diesel sits £2,200-£3,100.

• 4G63 petrol rebuilt: £2,400-£2,800 supply-only
• 4D68 diesel rebuilt: £2,200-£3,100 supply-only
• Supply & fit adds £600-£1,200 depending on location
• All rebuilt units include 12-month unlimited mileage warranty

The 4G63 is generally reliable but has a known timing chain tensioner weakness around 120,000 miles that drives most replacement enquiries for UK L100 vans.

• Timing chain tensioner (MB062044) fails at ~120k miles
• Rebuilt units include upgraded tensioner to prevent repeat failure
• Head gasket risk if cooling system neglected
• With maintenance, 4G63 can reach 150-200k miles

The 4D68 diesel's main failure point is injector wear after 150,000 miles, causing rough idle, cutting out and eventual no-start conditions on commercial L100s.

• Common rail injectors wear internally at high mileage
• Symptoms: rough idle, loss of power, hard starting
• Rebuilt engines include upgraded injectors and rail components
• Fuel economy makes 4D68 popular despite injector sensitivity

For L100s over 120k miles with major failures, replacement is usually more economical than repair, especially for commercial vehicles where downtime costs money.

• Repairs viable only for minor, early-stage issues
• Rebuilt engines address all wear points in one job
• 12-month warranty protects against repeat downtime
• Supply & fit options minimise vehicle off-road time

For used L100 purchases, the 4G63 2.0L petrol offers the best balance of availability, parts support and rebuild affordability in the UK commercial market.

• 4G63 has strongest UK aftermarket support
• Rebuilt units readily available at £2,400-£2,800
• Check service history for timing chain maintenance
• Avoid units with overheating history or oil/coolant mixing

A properly rebuilt Mitsubishi L100 engine with upgraded components can reliably deliver another 80,000-120,000 miles with regular maintenance and commercial use.

• Rebuilt engines replace all wear items: bearings, seals, gaskets
• Upgraded timing components address known failure points
• Follow service intervals for oil and cooling system
• 12-month unlimited mileage warranty provides peace of mind

Engine swaps are possible but complex; sticking with the original 4G63 or 4D68 code ensures compatibility with ECU, wiring and chassis mounts on UK L100s.

• 4G63 and 4D68 share mounting points across H11A/H12A
• ECU and wiring harness must match engine code
• Chassis code (H10A/H11A/H12A) affects compatibility
• Specialist advice recommended before attempting swaps

EngineMarket connects you with vetted UK Mitsubishi L100 engine specialists offering rebuilt, reconditioned and used units with supply & fit options nationwide.

• Network of 100+ UK engine specialists and rebuilders
• Compare prices, warranty terms and turnaround times
• All suppliers rated and reviewed by commercial users
• Fast quotes delivered within hours of enquiry

Every rebuilt Mitsubishi L100 engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty from UK specialists.

• 12-month unlimited mileage warranty standard on rebuilt units
• Warranty covers parts and labour for manufacturing defects
• Supply & fit packages include installation warranty
• Always confirm exact terms with your chosen supplier

Most rebuilt Mitsubishi L100 engines are available for next-day delivery from UK stock, with supply & fit appointments often available within 48 hours for commercial urgency.

• Next-day delivery available on common 4G63/4D68 units
• Supply & fit appointments scheduled to minimise downtime
• Urgent commercial orders prioritised by network specialists
• Enter registration for instant compatibility check and quotes