Land Rover Defender 130 D350 Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Land Rover Defender 130 D350 engine specialists. Compare prices on reconditioned, rebuilt and used engines to restore your high-performance mild-hybrid diesel powertrain.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers

From £6,500 to £10,000 [ESTIMATED - using Land Rover 3.0L Ingenium family as proxy]
Used from £2,500 · Reconditioned from £4,500 · Common codes: AJ20D6, DT306
From £2,500
Tested, bare/short engine
From £4,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Land Rover Defender 130 D350 specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Land Rover Defender 130 D350 Replacement Engineto Finding the Best Land Rover Defender 130 D350 Replacement Engine
Most replacements completed within 3-5 days.
Land Rover Defender 130 D350 - Engine History & Specs at a Glance
Launched as the high-output diesel flagship of the extended-wheelbase L663 generation, the Land Rover Defender 130 D350 pairs exceptional towing capacity with a potent 3.0-litre inline-six mild-hybrid diesel engine.

Land Rover Defender 130 D350 - Engine History & Specs at a Glance
Launched as the high-output diesel flagship of the extended-wheelbase L663 generation, the Land Rover Defender 130 D350 pairs exceptional towing capacity with a potent 3.0-litre inline-six mild-hybrid diesel engine.
Land Rover Defender 130 D350
Engine History Timeline
AJ20D6 / DT306 (3.0L I6 Diesel MHEV) 350PS (258kW), introduced to the Defender 130 lineup to provide enhanced torque (700Nm) and improved efficiency for heavy-duty use.
Key Specs Snapshot
Every engine fitted to the Land Rover Defender 130 D350 is covered below, with UK rebuilt pricing and known failure points.
Land Rover Defender 130 D350 Engine Codes - Specifications & Replacement CostLand Rover Defender 130 D350 Engine Codes - Specifications & Replacement Cost
3.0L Diesel MHEV (2024-present)
Compatible Trim Levels
- Defender 130 D350 X-Dynamic SE
- Defender 130 D350 X-Dynamic HSE
- Defender 130 D350 X

Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£2,500-£4,500
Reconditioned
Addressed known issues, tested
£4,500-£7,500
Rebuilt
Full teardown, upgraded internals
£6,500-£10,000
Common Failure
As a relatively new engine, long-term failure data is still emerging, but early Ingenium 3.0L diesel variants have shown vulnerabilities in the oil filter housing (plastic component cracking) and mild-hybrid electrical system integration.


The 3.0L Ingenium inline-six diesel in the Land Rover Defender 130 D350 is a highly capable, modern powertrain. While generally robust, its complex mild-hybrid architecture and high-pressure fuel systems require precise maintenance. Rebuilt engines through EnginesMarket include upgraded components addressing original failure points, backed by a minimum 12-month unlimited-mileage warranty.

Why the Land Rover Defender 130 D350 AJ20D6 Requires Attention
Affected Vehicles
Land Rover Defender 130 D350 (AJ20D6 / DT306, 2024-present)
Typical Failure Mileage
30,000-60,000 miles (early production units)
Root Cause
The oil filter housing, constructed from a specific plastic composite, can become brittle and crack under thermal stress, leading to sudden oil loss and potential engine seizure if not addressed.
Why It Happens
The oil filter housing, constructed from a specific plastic composite, can become brittle and crack under thermal stress, leading to sudden oil loss and potential engine seizure if not addressed.
Dealer (parts + labour)
£800-£1,200
Specialist (parts + labour)
£500-£800
What it involves
Replacement with updated, more durable housing material
Suitability
Highly recommended preventative measure
Dealer (parts + labour)
£9,000-£14,000
Specialist (parts + labour)
£6,500-£10,000 [ESTIMATED]
What it involves
Supply & fit of a rebuilt 3.0L I6 with upgraded cooling components and 12-month warranty
Suitability
Necessary if oil starvation has caused bearing damage or block scoring
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
Preventative Oil Filter Housing Replacement Minor | £800-£1,200 | £500-£800 | Replacement with updated, more durable housing material | Highly recommended preventative measure | |
Full Replacement - rebuilt/reconditioned engine Best Value | £9,000-£14,000 | £6,500-£10,000 [ESTIMATED] | Supply & fit of a rebuilt 3.0L I6 with upgraded cooling components and 12-month warranty | Necessary if oil starvation has caused bearing damage or block scoring |
Vehicle Value Check
Vehicle Value Check
A typical Land Rover Defender 130 D350 holds a current UK market value of £75,000-£95,000+ depending on specification and mileage [THIRD-PARTY]. At this valuation, a rebuilt engine replacement cost represents a small fraction of the vehicle's total value, making professional replacement highly viable to preserve its premium status.
Our Recommendation
Our Recommendation
Proactive inspection and replacement of the oil filter housing is a highly recommended, low-cost preventative measure. If oil starvation has already occurred, a full rebuilt engine replacement is the safest and most reliable solution to protect your investment.

Don't Let Engine Failure Write Off Your Land Rover Defender 130 D350
Protect your premium investment with a fully rebuilt Land Rover Defender 130 D350 engine. Our network supplies units with upgraded components that address known failure points, backed by a minimum 12-month unlimited-mileage warranty and nationwide delivery. Avoid main dealer premiums by comparing transparent, itemised quotes from vetted UK specialists today.
Compare rebuilt AJ20D6 Land Rover Defender 130 D350 engine prices
Important Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Land Rover Defender 130 D350. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Land Rover Defender 130 D350 Engine ReplacementFrequently Asked Questions
Question 1How much does a Land Rover Defender 130 D350 engine replacement cost-
A complete rebuilt Land Rover Defender 130 D350 engine typically costs between £6,500 and £10,000 for supply only [ESTIMATED].
- Used units start from around £2,500.
- Reconditioned units range from £4,500 to £7,500.
- Prices vary based on the specific AJ20D6 / DT306 engine code and supplier.
Question 2What are the signs of oil filter housing or cooling failure in a Defender 130 D350-
Early warning signs include sudden drops in oil pressure, visible oil leaks under the vehicle, or dashboard warning lights indicating low oil levels.
- Unusual engine noises or knocking due to oil starvation.
- Sweet smells or steam from the engine bay indicating coolant mixing.
- Reduced performance or limp mode activation.
Question 3Is it worth replacing the engine in a Land Rover Defender 130 D350-
Yes, absolutely. The Land Rover Defender 130 D350 is a high-value premium SUV with current market values ranging from £75,000 to over £95,000 [THIRD-PARTY].
- A rebuilt engine cost is a small fraction of the vehicle's total value.
- It preserves the car's towing capability, refinement, and resale value.
- Upgraded rebuilt units address known factory component weaknesses.
Question 4How long does a Land Rover Defender 130 D350 engine supply and fit take-
A professional Land Rover Defender 130 D350 engine replacement typically takes 3 to 5 working days.
- Removal and preparation of the old unit takes 1-2 days.
- Fitting, calibration, and 48V MHEV system testing of the new rebuilt engine takes 2-3 days.
- Nationwide collection and delivery are arranged by the specialist.
Question 5Do rebuilt D350 engines retain the 48V mild-hybrid (MHEV) functionality-
Yes, reputable specialists rebuilding a Land Rover Defender 130 D350 engine ensure full compatibility with the 48V mild-hybrid architecture.
- The integrated starter-generator (ISG) and associated electrical components are tested and calibrated.
- All MHEV software maps are retained or updated to factory specifications.
- This ensures seamless stop-start operation and torque-fill performance.
Compare Land Rover Defender 130 D350Engine PricesToday
100+ Land Rover Defender 130 D350 engines supplied through our network
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