Land Rover Defender 110 Octa Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Land Rover Defender 110 Octa engine specialists. Compare prices on reconditioned, rebuilt and used S68 4.4L V8 Twin-Turbo engines to find the best supply and fit solution for your vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £12,000 to £18,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy]
Used from £5,000 · Reconditioned from £8,000 · Common codes: S68
From £5,000
Tested, bare/short engine
From £8,000
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 110 Octa specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Land Rover Defender 110 Octa Replacement Engineto Finding the Best Land Rover Defender 110 Octa Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryLand Rover Defender 110 Octa - Engine History & Specs at a Glance
When the Octa variant launched in the L663 Defender 110 lineup, it marked the absolute pinnacle of Defender performance, introducing a bespoke 4.4-litre twin-turbocharged V8 mild-hybrid (MHEV) powertrain delivering uncompromising on-road refinement and extreme capability.
Variant HistoryLand Rover Defender 110 Octa - Engine History & Specs at a Glance
When the Octa variant launched in the L663 Defender 110 lineup, it marked the absolute pinnacle of Defender performance, introducing a bespoke 4.4-litre twin-turbocharged V8 mild-hybrid (MHEV) powertrain delivering uncompromising on-road refinement and extreme capability.
Land Rover Defender 110 Octa
Fuel TypePetrol (48V MHEV)
Engine Size Range4.4L
Power Output Range635hpEngine History Timeline
S68 (4.4L V8 Twin-Turbo MHEV) 635hp, introduced exclusively to the Defender 110 Octa, featuring an 8-speed ZF automatic transmission, active electronic rear differential, and Dynamic Response Pro chassis technology.
Key Specs Snapshot
Fuel TypePetrol (48V MHEV)Engine Size Range4.4LPower Output Range635hpYears Produced2024-presentEvery engine fitted to the Land Rover Defender 110 Octa is covered below, with UK rebuilt pricing and known failure points.
Land Rover Defender 110 Octa Engine Codes - Specifications & Replacement CostLand Rover Defender 110 Octa Engine Codes - Specifications & Replacement Cost
4.4L Petrol MHEV (2024-present)
Power Output635hpYears Fitted2024-present
Compatible Trim Levels
- Defender 110 Octa
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£5,000-£8,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy]
Reconditioned
Addressed known issues, tested
£8,000-£14,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy]
Rebuilt
Full teardown, upgraded internals
£12,000-£18,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy]
Common Failure
As a newly introduced ultra-premium powertrain, long-term failure patterns are still emerging, but early specialist monitoring focuses on twin-turbocharger coolant line integrity and high-pressure fuel pump (HPFP) reliability under extreme thermal loads.
The Land Rover Defender 110 Octa (S68) represents the pinnacle of modern V8 engineering. While highly robust, complex twin-turbocharged MHEV architectures require meticulous maintenance. Rebuilt engines through EnginesMarket include upgraded components addressing original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Land Rover Defender 110 Octa S68 Requires Precision Care
Affected Vehicles
Land Rover Defender 110 Octa (S68, 2024-present)
Typical Failure Mileage
40,000-80,000 miles (projected based on sibling ultra-premium V8 architectures)
Root Cause
The "hot-vee" twin-turbo layout generates extreme under-bonnet temperatures, placing significant thermal stress on coolant crossover pipes, turbocharger seals, and high-pressure fuel components over time.
Why It Happens
The "hot-vee" twin-turbo layout generates extreme under-bonnet temperatures, placing significant thermal stress on coolant crossover pipes, turbocharger seals, and high-pressure fuel components over time.
Dealer (parts + labour)
£1,500-£3,000
Specialist (parts + labour)
£800-£1,500
What it involves
Coolant system flush, turbo seal inspection, and ECU software updates.
Suitability
Highly recommended preventative measure to avoid catastrophic thermal damage.
1 - 2 daysDealer (parts + labour)
£18,000-£25,000
Specialist (parts + labour)
£12,000-£18,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy]
What it involves
Supply & fit, upgraded thermal management components, 12-month warranty.
Suitability
The only acceptable solution if catastrophic internal failure or severe overheating occurs.
1 - 2 days
All prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor/Preventative (Coolant & Turbo Seal Inspection) Minor | £1,500-£3,000 | £800-£1,500 | Coolant system flush, turbo seal inspection, and ECU software updates. | Highly recommended preventative measure to avoid catastrophic thermal damage. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £18,000-£25,000 | £12,000-£18,000 [ESTIMATED - using BMW S63B44 / Land Rover 508PS ultra-premium V8 as proxy] | Supply & fit, upgraded thermal management components, 12-month warranty. | The only acceptable solution if catastrophic internal failure or severe overheating occurs. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Land Rover Defender 110 Octa (2024-present) currently holds a UK market value of approximately £150,000-£180,000+ [THIRD-PARTY]. - Vehicle worth under ~£5,000: repair or used engine typically makes more sense than a full rebuilt unit. - Vehicle worth ~£5,000-£8,000: evaluate both; reconditioned is viable if keeping the car 2+ years. - Vehicle worth ~£8,000-£15,000: reconditioned/rebuilt usually justifies the premium via warranty and reliability. - Vehicle worth £15,000+: replacement cost is typically small relative to vehicle value. Given the Defender 110 Octa's ultra-premium retained value, a reconditioned or rebuilt S68 engine is a financially sound investment that protects the vehicle's flagship asset value, easily justifying the replacement cost.
Our Recommendation
Our Recommendation
For the Land Rover Defender 110 Octa, strict adherence to manufacturer service intervals using only approved high-performance synthetic oils is paramount. If a catastrophic internal failure occurs, a fully rebuilt S68 engine with upgraded thermal management components is the only viable solution to preserve the vehicle's extreme performance and immense residual value.
Don't Let Engine Failure Write Off Your Land Rover Defender 110 Octa
Protect your ultra-premium investment by comparing quotes from vetted UK specialists. Every engine supplied through our network features upgraded components to prevent known high-performance V8 failures, backed by a minimum 12-month unlimited mileage warranty and nationwide delivery options. Avoid main dealer premiums without sacrificing the precision engineering your Octa demands.
Compare rebuilt S68 Land Rover Defender 110 Octa engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant 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 110 Octa. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Land Rover Defender 110 Octa Engine ReplacementFrequently Asked Questions
Question 1How much does a Land Rover Defender 110 Octa engine replacement cost-
A reconditioned Land Rover Defender 110 Octa (S68) engine typically costs between £8,000 and £14,000 for supply only, with fully rebuilt options ranging from £12,000 to £18,000.
- Prices vary based on the specialist and whether you choose supply-only or supply-and-fit.
- Used engines are cheaper (£5,000-£8,000) but carry higher risk without a comprehensive warranty.
Question 2What are the signs of turbocharger or cooling failure in a Land Rover Defender 110 Octa-
The most common early warning signs include unexplained coolant loss, a distinct sweet smell from the engine bay, or reduced boost pressure under heavy acceleration.
- You may also notice the engine management light illuminating or the vehicle entering a protective limp mode.
- Unusual whining or rattling noises from the "hot-vee" area of the V8 require immediate investigation.
Question 3Is it worth replacing the engine in a Land Rover Defender 110 Octa-
Yes, given the exceptional retained value of the L663 Defender 110 Octa (typically £150,000-£180,000+), a rebuild is highly financially viable.
- A reconditioned S68 engine with a 12-month warranty restores peak performance and protects your asset's premium value.
- Replacement cost is a small fraction of the vehicle's overall market value.
Question 4How long does a Land Rover Defender 110 Octa engine replacement take-
A professional supply and fit service for the Land Rover Defender 110 Octa typically takes 3 to 5 days due to the complexity of the L663 chassis and twin-turbo MHEV electrical architecture.
- This includes careful removal, thorough engine bay cleaning, and precise installation of the replacement S68 unit.
- Comprehensive post-fit testing and ECU calibration are completed before handover.
Question 5Can the S68 engine in the Land Rover Defender 110 Octa be upgraded for better reliability during replacement-
Yes, many specialists recommend upgrading to revised coolant crossover pipes and improved turbocharger seals during an S68 replacement.
- These preventative upgrades address the known thermal stress points of high-performance "hot-vee" V8 architectures.
- EnginesMarket specialists often include these upgrades as standard in their rebuilt S68 packages.
Why Choose UsCompare Land Rover Defender 110 OctaEngine PricesToday
50+ Land Rover Defender 110 Octa engines supplied through our network
12-Month Warranty on every rebuilt Land Rover Defender 110 Octa engine
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