Range Rover Sport D350 Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Range Rover Sport D350 engine specialists. Compare prices on reconditioned, rebuilt and used engines to secure the best supply and fit solution for your vehicle.
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12-Month Warranty
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From £6,000 to £9,000 [EM-QUOTE]
Used from £3,500 · Reconditioned from £5,500 · Common codes: AJ300D
From £3,500
Tested, bare/short engine
From £5,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

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3 Simple Steps3 Simple Stepsto Finding the Best Range Rover Sport D350 Replacement Engineto Finding the Best Range Rover Sport D350 Replacement Engine
Most replacements completed within 3-5 days.
Range Rover Sport D350 - Engine History & Specs at a Glance
When the D350 variant launched in the L461 generation, it brought a high-output 350PS 3.0-litre inline-six mild-hybrid diesel to the Range Rover Sport lineup, offering exceptional towing capability and refined motorway cruising.

Range Rover Sport D350 - Engine History & Specs at a Glance
When the D350 variant launched in the L461 generation, it brought a high-output 350PS 3.0-litre inline-six mild-hybrid diesel to the Range Rover Sport lineup, offering exceptional towing capability and refined motorway cruising.
Range Rover Sport D350
Engine History Timeline
AJ300D 3.0L Inline-6 MHEV Diesel, 350 PS (Introduction of the D350 powertrain to the L461 Range Rover Sport, featuring twin-turbocharging, 48V mild-hybrid assistance, and advanced emissions controls).
Key Specs Snapshot
Every engine fitted to the Range Rover Sport D350 is covered below, with UK rebuilt pricing and known failure points.
Range Rover Sport D350 Engine Codes - Specifications & Replacement CostRange Rover Sport D350 Engine Codes - Specifications & Replacement Cost
3.0L Diesel MHEV (2022-present)
Compatible Trim Levels
- Range Rover Sport D350 S
- Range Rover Sport D350 SE
- Range Rover Sport D350 HSE
- Range Rover Sport D350 Dynamic HSE

Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£3,500-£5,500 [EM-QUOTE]
Reconditioned
Addressed known issues, tested
£5,500-£8,000 [EM-QUOTE]
Rebuilt
Full teardown, upgraded internals
£6,000-£9,000 [EM-QUOTE]
Common Failure
DPF regeneration issues on short journeys, SCR/AdBlue system faults, and EGR valve carbon buildup are the most documented issues for this 3.0L MHEV architecture.


The Range Rover Sport D350 is a capable, modern mild-hybrid diesel designed for heavy loads and towing. However, its 3.0L Ingenium architecture is susceptible to specific emissions-related and ancillary issues. Rebuilt engines through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.

Why the Range Rover Sport D350 AJ300D Suffers Premature Wear
Affected Vehicles
Range Rover Sport D350 (AJ300D, 2022-present)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
Frequent short journeys prevent complete DPF regeneration, leading to soot buildup and back-pressure, while the EGR valve is prone to carbon fouling and restricted airflow.
Why It Happens
Frequent short journeys prevent complete DPF regeneration, leading to soot buildup and back-pressure, while the EGR valve is prone to carbon fouling and restricted airflow.
Dealer (parts + labour)
£800-£1,500
Specialist (parts + labour)
£400-£800
What it involves
Diagnostic tool initiation of stationary regen, chemical cleaning of the EGR valve and intake manifold.
Suitability
Effective for early-stage symptoms; prevents catastrophic turbo or engine damage.
Dealer (parts + labour)
£10,000-£14,000
Specialist (parts + labour)
£6,000-£9,000 [EM-QUOTE]
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
The right call if the engine has suffered catastrophic overheating, turbo damage, or severe internal blockage.
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
Minor/Preventative (Forced regen + EGR clean) Minor | £800-£1,500 | £400-£800 | Diagnostic tool initiation of stationary regen, chemical cleaning of the EGR valve and intake manifold. | Effective for early-stage symptoms; prevents catastrophic turbo or engine damage. | |
Full Replacement - rebuilt/reconditioned engine Best Value | £10,000-£14,000 | £6,000-£9,000 [EM-QUOTE] | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | The right call if the engine has suffered catastrophic overheating, turbo damage, or severe internal blockage. |
Vehicle Value Check
Vehicle Value Check
A typical Range Rover Sport D350 (L461) is worth £55,000-£90,000+ `[THIRD-PARTY]`. At this value, a rebuilt engine replacement cost is a small fraction of the vehicle's overall value, making replacement highly viable to preserve the asset.
Our Recommendation
Our Recommendation
If the issue is strictly early-stage DPF/EGR related, a specialist service, software update, and cleaning is the most cost-effective fix. However, if there is accompanying loss of compression, turbo failure, or internal damage, a fully rebuilt unit with all known vulnerabilities addressed is the safest long-term choice for a vehicle of this caliber.

Don't Let Engine Failure Write Off Your Range Rover Sport D350
Protect your investment with a rebuilt engine that includes upgraded components, a comprehensive 12-month unlimited mileage warranty, and nationwide supply & fit delivery. Comparing specialist quotes ensures you avoid main dealer premiums while securing precision engineering for your high-performance Range Rover Sport.
Compare rebuilt AJ300D Range Rover Sport 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 Range Rover Sport D350. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Range Rover Sport D350 Engine ReplacementFrequently Asked Questions
Question 1How much does a Range Rover Sport D350 engine replacement cost-
A reconditioned or rebuilt AJ300D engine for the Range Rover Sport D350 typically ranges from £5,500 to £9,000 for supply only, depending on the condition and specialist.
- Rebuilt units include upgraded components and a warranty.
- Supply and fit labour will add approximately £975-£1,300 depending on the workshop.
Question 2What are the signs of DPF or EGR failure in a Range Rover Sport D350-
Early signs include unexplained loss of power, excessive black smoke from the exhaust, or frequent warning lights requesting DPF regeneration.
- You may also notice rough idling, increased fuel consumption, or a distinct smell of sulphur.
- Ignoring these signs can lead to catastrophic turbo or internal engine damage.
Question 3Is it worth replacing the engine in a modern Range Rover Sport D350-
Yes, given the high retained value of the L461 Range Rover Sport D350 (typically £55,000+), a rebuilt engine is a financially sound investment.
- A rebuilt unit restores factory performance and includes a 12-month warranty.
- It is significantly more cost-effective than purchasing a new vehicle.
Question 4How long does a Range Rover Sport D350 engine replacement take-
A professional supply and fit service for the AJ300D engine typically takes 3 to 5 days due to the complexity of the inline-six layout and ancillary systems.
- This includes engine removal, thorough bay cleaning, installation of the replacement unit, and comprehensive ECU calibration.
- Nationwide delivery of the replacement engine can be arranged to your chosen specialist.
Question 5What is the difference between a used and a rebuilt Range Rover Sport D350 engine-
A used engine is a direct salvage unit with unknown history and limited warranty coverage.
- A rebuilt engine is fully stripped, cleaned, and fitted with new or upgraded components (such as updated EGR valves and DPF systems).
- Rebuilt engines come with a minimum 12-month unlimited mileage warranty, offering superior peace of mind.
Compare Range Rover Sport D350Engine PricesToday
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