Land Rover Defender OCTA Engine Rebuild —Twin-Charged Inline Six Supply, Rebuild & Fit in Grays, Essex & Across the UK



The Defender OCTA is Land Rover's most extreme, most capable, and most technically ambitious production vehicle. It is not simply a high-performance Defender — it is a complete reimagining of what the Defender platform can deliver when engineering ambition is given full rein.
At its heart sits a twin-charged 3.0 litre inline six engine producing 635HP — combining a supercharger and a turbocharger in a single powertrain configuration that places the OCTA in an entirely different performance category from every other Defender variant.
When that engine requires specialist attention, the response needs to match its sophistication. At Vogue Technics in Grays, Essex, we provide Land Rover Defender OCTA engine rebuild services — combining genuine specialist knowledge, fully tested reconditioned units, emergency response capability, and a transparent supply and fit process from our RM20 workshop or delivered anywhere across the UK.
Defender OCTA Engine Supply & Reconditioning — Twin-Charged 635HP Specialist Rebuild
Rebuilt to the exacting standard this powertrain demands. Every unit is fully stripped, inspected, and rebuilt using OEM specification components.
Reconditioned Twin-Charged Engine — Built to Spec
Combining supercharged and turbocharged systems. Our team understands every specific requirement of this ACHIEVED engineering powertrain.
- Complete strip, inspect, machine & reassemble
- Twin-charged system & timing addressed
- Supplied with up to 6 months warranty
- Full supply and fit at Grays RM20
Mild Hybrid System Integration
Integrated assessments of performance loss and management faults. We resolve both mechanical and electrical elements together.
- Integrated powertrain diagnosis Essex
- Hybrid fault code resolution specialists
- Same-day hybrid state diagnostics
- Full hybrid & engine integration repair
Low Mileage OCTA Units
Sourced from carefully verified channels. compression tested and internally inspected. Delivered UK-wide with full technical support.
Defender OCTA Engine Faults, Diagnostics & Emergency Repair — Grays, Essex
Severe mechanical and thermal stress demands accurate diagnosis before repair. We identify the root cause correctly.
Common Defender OCTA Engine Problems
From twin-charge pressure faults to hybrid integration failure — our diagnostics are RM20 based specialists.
- Twin-charged i6 knocking noise rebuilds
- OCTA low oil pressure pump & delivery fixing
- Thermal management & overheating assessment
- White smoke (turbo, ring, or seal) diagnosis
- OCTA performance loss boost & fuel fixing
- Hybrid system integrated powertrain diagnosis
- Misfire fuelling & management system faults
Same-Day OCTA Diagnostics — Grays
Specialist equipment compatible with twin-charged systems. Live engine data assessment across powertrain and hybrid feeds.
Emergency Repair — 24-Hour Support
Defender OCTA off the road? We coordinate recovery and fast-track installation from our Essex workshop or provide immediate guidance.
Why Choose Vogue Technics for Your Defender OCTA Engine Rebuild?
Independent specialist knowledge of the OCTA powertrain, transparent pricing, and genuine warranty cover.
Independent OCTA Specialists — Grays
Handling the most demanding rebuild project in the JLR lineup with genuine hands-on expertise across performance engineering.
Price Excellence vs Main Dealer
Competitive pricing compared to factory costs. Honest advice with no pressure to spend beyond what is situationally required.
6 Month Warranty — Grays Hub
Reconditioned engines come with full written terms. Used units are also supplied with protection cover as standard.
Land Rover Defender OCTA (Apex Performance) Engine Codes to Help You Find Your Vehicle
| Make | Model | Engine Code | Valves | Actual CC | Power Kw / Hp | Year Range | |
|---|---|---|---|---|---|---|---|
| Land Rover | Defender OCTA | Twin-Charged i6 | - | 2996 | 467 kW / 635 hp | 2024–2025 | Get Quote |
| Land Rover | OCTA Mild Hybrid | Integrated MHEV | - | N/A | Integrated | 2024–2025 | Get Quote |
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FREQUENTLY ASKED QUESTIONS — LAND ROVER DEFENDER OCTA ENGINE REBUILD
Find answers to common questions about our engine rebuilds and replacements in Grays England.
Ready to resolve your Defender OCTA engine problem?
Pushing boundaries demands support that matches. Contact our specialists in Grays today for straight answers and a service that does justice to the OCTA.
Find Your Defender Engine
Select your model below to view specific engine codes, technical specifications and fitting details for your vehicle.