Land Rover Defender X L663 Engine Replacement - Rebuilt & Reconditioned Units from £3,000

Source genuine OE-spec engines from vetted UK specialists. Every unit tested to Land Rover OEM standards with 12m unlimited mileage warranty. Compare quotes & save up to 60% online.

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Engine Finders

Land Rover Defender X Specialists

Expert Solutions for Every Defender - D200 to X-Dynamic

Need a reliable replacement engine for your Land Rover Defender X?
Engine Finders is the UK’s #1 marketplace for high-quality Land Rover engines, solving common D24 diesel ECU faults and turbo failures with OEM-spec rebuilt units.

Find Your Perfect Land Rover Defender X Engine Today!
Land Rover Defender X engine replacement specialists | Engine Finders

Land Rover Defender X Replacement Engine Options - UK Supply

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for L663 chassis models.

Land Rover Defender X Rebuilt Engines

Rebuilt with updated ECU programming to resolve D24 diesel fault codes and limp mode issues.

Land Rover Defender X Remanufactured Engines

Fully stripped and rebuilt with new turbo actuators and high-pressure fuel pumps for D200/D250 engines.

Land Rover Defender X Reconditioned Engines

Thoroughly inspected and restored, addressing common D300 timing belt wear and oil cooler leaks.

Land Rover Defender X Replacement Engines

Direct swap engines with verified low mileage, ideal for D24 diesel owners needing quick turnaround.

Land Rover Defender X Refurbished Engines

Cleaned, tested, and tuned to prevent P101F turbo pressure faults common in X-Dynamic models.

Land Rover Defender X Used Engines

Affordable options with verified history, perfect for L663 chassis owners restoring premium variants.

Land Rover Defender X (L633) Compatible Engine Codes & Average Prices on Rebuilt Units (UK Supply)

All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.

Where to buy Land Rover Defender X replacement engine | Engine Finders

Why Choose Engine Finders for Your Land Rover Defender X Engine?

The Land Rover Defender X (L663) features advanced D24, D300, and P400 engines that are prone to ECU faults, turbo actuator failure, and supercharger wear. We specialise in OEM-spec replacement engines with updated components specifically for 2020+ Defender X models, ensuring reliability, MoT compliance, and seamless fitment.

  • ✔ Updated ECU Software for D24 Diesel Engines

    Prevents limp mode and fault codes with reprogrammed ECU modules specific to L663 chassis.

  • ✔ New Turbo Actuators on D300 Engines

    Fixes boost pressure issues (P101F) common in high-mileage 3.0L diesel units.

  • ✔ Direct Fit for L663 Chassis Models

    Ensures perfect compatibility with mounts, wiring loom, and transmission on Defender X.

  • ✔ Supercharger Replacement on P400 Engines

    Includes new supercharger (OEM LRC00102) to restore full performance in petrol models.

  • ✔ 12-Month Warranty on All Rebuilds

    Covers mechanical failure with support from our network of Land Rover specialists.

  • ✔ Bench-Tested for Emissions & Performance

    Every engine runs under load to verify oil pressure, cooling, and emissions compliance.

  • ✔ UK-Rebuilt with OEM-Spec Components

    Uses genuine-spec parts to maintain warranty eligibility and long-term reliability.

Rated 4.9 out of 5 by 997 satisfied customers who chose reconditioned and used Land Rover engines through Engine Finders.

Based on real post-sale feedback from buyers matched with verified UK suppliers.

4.9/5
"Saved over £2k on my Land Rover engine, proper saving!" - James K, Wigan
"Sam helped me sort my Defender X D300 engine in days, brilliant chap!" - Henry, Middlesbrough
"Land Rover specialists who actually know their stuff, Engine Finders really helped me out." - Charlotte, Aylesbury
"Got 7 quotes in one day, saved alot of money with comparison." - Oleg, Warrington
"Brought my engine from these lot and the engine runs better than when I first got it!" - Tommy, Huddersfield
Get Your Custom Land Rover Quote Today

Land Rover Defender X Engines for Sale | Engine Finders

Need a reliable Land Rover Defender X replacement engine? We connect you with UK specialists offering OEM-spec rebuilt, reconditioned, and used units for all L663 models, solving common issues like ECU faults and turbo actuator failure.

Land Rover Defender X Replacement Engines

The Land Rover Defender X (L663, 2020-present) features advanced petrol and diesel engines including the D24, D300, and P400. The 2.0L D24 diesel (D200/D250) is prone to ECU software glitches and turbo actuator failure, often triggering limp mode. The 3.0L D300 diesel suffers from timing belt wear and oil cooler leaks, while the P400 petrol engine's supercharger (OEM LRC00102) can degrade over time, reducing performance. These engines use modular Ingenium architecture with specific ECU mapping for the Defender X’s terrain response system. Land Rover issued Technical Service Bulletin TSB-ENG-2021-03 addressing ECU recalibration for D24 units. Correct engine matching is critical for compatibility with the 8-speed automatic transmission and chassis control systems.

Land Rover Defender X Models & Engines Codes

Below are the primary engine codes for the Defender X (L663), grouped by type:

  • D24: 2.0L I4 Diesel (D200/D250, 2020-present) - known for ECU faults and turbo actuator failure (OEM LRK00045)
  • D300: 3.0L I6 Diesel (2020-present) - timing belt wear (OEM LRC00088) and oil cooler leaks common
  • P400: 3.0L I6 Petrol with Supercharger (2020-present) - supercharger wear (OEM LRC00102) affects boost
  • P300: 2.0L I4 Petrol (2020-2022) - less common, prone to turbo lag and sensor issues
  • D200: Entry-level 2.0L diesel (L663) - shares D24 block with detuned ECU and lower output
  • D250: Mid-range 2.0L diesel - upgraded turbo and ECU over D200, same failure points
  • X-Dynamic: Trim level using D300 or P400 engines - requires correct ECU coding for adaptive dynamics
  • First Edition: Limited model with P400 only - verify VIN compatibility for engine swaps

All engines are direct-fit for L663 chassis with matching gearbox, wiring loom, and engine mounts. We verify ECU compatibility to ensure full system integration.

Buy Used and Second-Hand Land Rover Defender X Engines

We offer four engine types tailored to Defender X owners:

  • Used: Low-mileage cores with verified history, ideal for budget-conscious owners
  • Reconditioned: Inspected and cleaned, basic gaskets replaced
  • Rebuilt: Fully disassembled, worn parts replaced, performance-tuned
  • Remanufactured: OEM-spec rebuild with updated components for known failure points

For D24 and D300 diesel models, we recommend remanufactured engines with updated ECU software and turbo actuators. P400 owners benefit from rebuilt units with new superchargers and revised valve seals.

Land Rover Defender X Engines in Stock

Our reconditioned Defender X engines include replacement of key failure-prone components:

  • New ECU software flash and turbo actuator (OEM LRK00045) for D24 engines
  • Timing belt (OEM LRC00088) and oil cooler upgrade for D300 units
  • Supercharger (OEM LRC00102) and revised valve seals for P400 petrol
  • Full gasket and seal replacement, including sump, cam, and cover seals
  • Updated water pump and thermostat for improved cooling reliability

Every engine is bench-tested for oil pressure, ECU communication, and boost performance before dispatch, ensuring MoT compliance and seamless fitment.

Warranty for Replacement Land Rover Defender X Engines

All rebuilt and reconditioned Defender X engines come with a 12-month warranty covering mechanical failure.

  • Covers internal components: crankshaft, pistons, camshafts, head gaskets
  • Excludes electrical items: ECU, sensors, actuators, and wiring connectors
  • Requires professional installation and proper maintenance records
  • Valid across the UK with support from our specialist network

Engine Finders is a price comparison platform connecting you with trusted suppliers. Warranty terms are set by the supplier and should be confirmed before purchase.

Where to buy Land Rover Defender X replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your Land Rover Defender X

♻️ Land Rover Defender X Engine Types Explained

  • Used D24 engines suit budget buyers; verify ECU history via log.
  • Reconditioned D300s fix oil leaks with new cooler (OEM LRC00077).
  • Rebuilt P400 units include supercharger (OEM LRC00102) replacement.
  • Remanufactured engines come with updated ECU to fix limp mode.

£ Land Rover Defender X Replacement Engine Cost in the UK

  • D24 2.0L diesel: £5,000-£5,800 rebuilt with ECU and turbo updates.
  • D300 3.0L diesel: £6,000-£6,800 with timing belt and oil cooler.
  • P400 petrol: £7,000-£7,800 due to supercharger and tech complexity.
  • Save £1,000+ via Engine Finders by comparing 5+ local suppliers.

🔍 Finding the Right Land Rover Defender X Engine

  • Check VIN or engine plate for D24, D300 or P400 code on L663 model.
  • Verify ECU compatibility-D24 engines need correct software version.
  • Match gearbox: ZF 8HP75 auto must align with engine control unit.
  • Avoid pre-2020 engines; they lack terrain response integration.

⛽ Land Rover Defender X Petrol vs Diesel Engines

  • Diesel (D24/D300): Better for towing, off-road, and long-distance.
  • Petrol (P400): Smoother power delivery, ideal for performance driving.
  • Diesel fails MoT if ECU or turbo actuator issues aren’t fixed properly.
  • For city use, petrol avoids ULEZ sensors; diesel better for rural areas.

🔒 Quality Assurance & Warranty

  • All engines tested for ECU comms, oil pressure, and boost response.
  • Turbo actuators (OEM LRK00045) replaced on all D24 and D300 units.
  • 12-month warranty covers internal mechanical failure, not electronics.
  • Engine Finders vets suppliers using Land Rover service standards.

🛒 Compare & Save on Land Rover Defender X Engines

  • Get 5+ quotes in 24hrs using your reg for exact L663 engine match.
  • Local suppliers reduce delivery fees and offer fitting discounts.
  • Avoid rebuilders who skip ECU reprogramming on D24 diesel engines.
  • Ask about core charge return policy to save up to £350.
⚙️ Land Rover Defender X Engine Works: How Experts Rebuild Engines

When your engine fails, Land Rover Defender X engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.

1. Strip down & inspect block for cracks using bore scope; check turbo actuator (OEM LRK00045) for wear.

2. Replace ECU software and reprogram for L663 chassis; clear fault codes and recalibrate terrain response.

3. Fit new timing belt (OEM LRC00088) and tensioner with correct torque (25Nm) on D300 engines.

4. Install supercharger (OEM LRC00102) on P400 units; test boost pressure up to 18 psi.

5. Pressure-test cooling system to 15psi; verify no leaks in updated oil cooler (OEM LRC00077).

6. Run engine on test rig for 90 mins, monitoring ECU signals, oil pressure, and exhaust gas temps.

Get Your Land Rover Defender X Engine Quote

Frequently Asked Questions - Land Rover Defender X Engines

How much does a Land Rover Defender X D24 engine replacement cost?

Reconditioned pricing:
• £5,000-£5,800 for D24 2.0L diesel (L663)
• Includes ECU reprogramming & turbo actuator (OEM LRK00045)
• 12-month warranty on mechanical components
• Save £1,000+ via Engine Finders by comparing local suppliers

Which engine codes fit my Land Rover Defender X L663 model?

Compatible engines:
• D24: 2.0L diesel (D200/D250 trims)
• D300: 3.0L diesel (X-Dynamic, X)
• P400: 3.0L petrol with supercharger
• All require correct ECU coding for terrain response system

What are common D300 engine problems in Defender X models?

Known D300 issues:
• Timing belt wear (OEM LRC00088) after 80k miles
• Oil cooler leaks causing low pressure warnings
• Turbo actuator failure leading to limp mode
• Addressed in Land Rover TSB-ENG-2021-03 with updated parts

Do rebuilt Defender X engines come with a warranty?

Warranty coverage:
• 12-month warranty on all rebuilt engines
• Covers internal components: crank, pistons, head gaskets
• Excludes electrical parts (ECU, sensors, actuators)
• Requires professional installation and service records

How do I identify my Defender X engine code?

Finding your code:
• Check engine plate on block near cylinder head
• Look for D24, D300 or P400 stamped into metal
• Verify on V5C registration document under "Engine Number"
• Match to L663 chassis (2020-present) for compatibility

Is a used engine reliable for my Defender X?

Used engine reliability:
• Yes, if verified low mileage and full service history
• Must include ECU log showing no limp mode events
• Inspect for oil leaks around cooler (OEM LRC00077)
• Best for budget builds; reconditioned recommended for long-term use

What’s the difference between reconditioned and remanufactured engines?

Key differences:
• Reconditioned: cleaned, gaskets replaced, basic inspection
• Remanufactured: fully disassembled, machined, OEM-spec rebuild
• For D24 engines, remanufactured includes ECU update
• Remanufactured costs more but offers longer lifespan

Can I upgrade from a D24 to a P400 in my Defender X?

P400 upgrade feasibility:
• Yes, but requires full ECU, wiring, and transmission swap
• Needs ZF 8HP75 gearbox matched to supercharged engine
• Expect £2,000+ in conversion parts and coding
• Best done by specialist to maintain MoT and warranty

How long does a Defender X engine replacement take?

Replacement timeline:
• 2-3 days for standard D24 or D300 swap
• Includes removal, ECU coding, and post-install diagnostics
• Upgrades (e.g., D24 to P400) take 4-5 days due to complexity
• Many suppliers offer fitting services through Engine Finders

Does Engine Finders supply engines with fitting services?

Fitting options:
• Yes, select "supply with fitting" when requesting quotes
• Local suppliers offer installation at competitive rates
• Includes engine mounting, ECU setup, and test drive
• Discuss warranty terms directly with chosen specialist