

Jaguar XJ Super V8Engine Rebuild— From £5,500
Specialist Jaguar XJ Super V8 engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty
Rated Jaguar Engine Specialists — 1,800+ Engines Rebuilt
Specialist technicians with 10-15 years of experience
12 Month Unlimited-Mileage Warranty
Nationwide Recovery
Free Engine Matching by Registration
Supercharged V8 Specialists

Your Jaguar XJ Super V8 Engine

Vehicle
Jaguar XJ Super V8
Model
XJ
Variant
Super V8
Fuel
Petrol Supercharged
Engine
AJ-V8 supercharged
Capacity
4.0L
Generations
X350 (2002–2009)
Rebuild From
£5,500
Not sure which engine you have?
The XJ Super V8 uses the AJ-V8 supercharged 3.0-litre inline-six mild-hybrid engine — enter your registration below and we'll confirm your exact spec before you get a quote.
DVLA & VIN verified
100% secure & private
No obligation quote
Jaguar XJ Super V8Engine Rebuild Price
Starting From £5,500

Engine Code
AJ-V8 superchargedRebuild From
£5,500

Generation
Exact price depends on condition and parts required — submit your reg for a fixed-price quote.
Jaguar XJ Super V8 Oil Leaks & Coolant System Wear (AJ-V8 supercharged I6)
The AJ-V8 supercharged is a sophisticated 3.0-litre inline-six with an integrated starter-generator and electric auxiliary compressor — a more modern and efficient design than the older AJ-V8 supercharged V6. We replace timing chains, bearings, water pump and gaskets as standard on every AJ-V8 supercharged rebuild.
Because the XJ Super V8 uses a completely different engine family from the V8 M178 fitted to the XJ 63 and GT 63 S, parts and rebuild specifications don't cross over between them.
Source: Established AJ-V8 supercharged specialist pattern — timing chain, bearing and gasket wear across integrated-starter-generator inline-six units.

Jaguar XJ Super V8ENGINE OPTIONS
Every XJ Super V8 is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR XJ SUPER V8 ENGINE
Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your XJ Super V8 already has instead — strip it down, pressure-test it, and replace every worn or damaged component with updated OEM parts. You get a near-new engine with a 12-month unlimited-mileage warranty, without the compatibility risk of an unknown used unit. This is the option most XJ Super V8 owners choose, and it's the one we'd recommend for most situations.
RECONDITIONED XJ SUPER V8 ENGINES
"Reconditioned" is the term many owners search for when they mean the same thing as a rebuild — a full strip-down, inspection, and replacement of worn parts rather than a straight swap. If that's what you're after, our rebuild service is exactly that.
REFURBISHED XJ SUPER V8 ENGINES
Similarly, "refurbished" often describes the same process from a different angle — restoring your existing engine to full working condition rather than replacing it outright. Our rebuild covers this.
REMANUFACTURED XJ SUPER V8 ENGINES
Some owners specifically search for a "remanufactured" engine, expecting a unit rebuilt to original specification with updated components. That's consistent with what our rebuild service delivers.
REPLACEMENT XJ SUPER V8 ENGINES
If your existing engine is beyond economical repair, we also offer full engine replacement and fitting — sourced and fitted by our team, with the same 12-month warranty.
USED XJ SUPER V8 ENGINES
In some cases, a matched low-mileage used engine is the right call — particularly if you need your car back on the road quickly and your existing engine's damage is extensive. We can source and fit these too, though most owners who ask about used engines end up choosing a rebuild once they understand the compatibility risk a used unit carries. Enter your reg below and we'll talk you through both options honestly.
NOT SURE WHICH OPTION IS RIGHT FOR YOU?
Enter your registration below and we'll confirm your AJ-V8 supercharged and talk you through the best solution for your XJ Super V8, honestly.
Ask About Your OptionsOUR WORKSHOP
01RECOVERY COLLECTION
02AJ-V8 supercharged ENGINE STRIPPED FOR REBUILD INSPECTION
03VALVE COVERS & COOLANT COMPONENT WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & READY FOR REFIT
Real photos from our workshop — not stock imagery. This is what a genuine Jaguar XJ Super V8 rebuild looks like.
Jaguar XJ Super V8 ENGINE REBUILD PROCESS
WHAT MERCEDES XJ Super V8 OWNERS SAY
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your Jaguar XJ Super V8 has the AJ-V8 supercharged, along with an exact rebuild price.
WHY MERCEDES XJ Super V8 OWNERS CHOOSE US
Engine matched using VIN or registration number
Genuine specialist workshop — not a broker
Specialist technicians with 10-15 years of experience
We don't swap your engine for an unknown used unit
Nationwide recovery, workshop rebuild
12 month unlimited-mileage warranty
All engine ancillaries serviced as part of the rebuild
Trade & public enquiries welcome
Dedicated advisor from quote to fit
OUR MOST RECENTMERCEDES RECOVERIES & REBUILDS
Real vehicles brought into our workshop. Open bonnets, stripped blocks, and cars ready for collection — this is what genuine engine work looks like.

Jaguar XJ Super V8
RECOVERY

Jaguar XJ Super V8
DIAGNOSTICS

Jaguar XJ Super V8
STRIPPED ENGINE

Jaguar XJ Super V8
TIMING CHAIN REPLACEMENT

Jaguar XJ Super V8
IN FOR REBUILD

Jaguar XJ Super V8
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most XJ models are recovered within a few hours of booking. Most rebuilds are completed within 3-5 working days.
Workshop slots fill up fast — book your recovery today.

LOOKING FOR A USED ORREPLACEMENT ENGINEINSTEAD?
We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most XJ Super V8 owners choose a rebuild once they realise it removes compatibility risk and works out more cost-effective over the life of the car.
Enter your reg below — we'll show you every option, honestly.
ABOUT THE Jaguar XJ Super V8 ENGINE

The XJ Super V8 was the flagship petrol model of the X350 generation, produced from 2002 to 2009. It used the supercharged 4.0-litre AJ-V8 — the same engine family that powered the XJR of the same era, tuned for the XJ's more refined character. The X350 was the first XJ to use an aluminium monocoque chassis, significantly lighter than previous steel-bodied XJs. The XJ Super V8 is no longer in production, but we continue to rebuild and replace engines for every one still on the road. About the AJ-V8 Supercharged Engine AJ-V8 supercharged (X350) A 4.0-litre supercharged V8 fitted to the XJ Super V8 across the entire X350 generation (2002–2009). No specific known issue confirmed for this application. We service it to the same standard as our other XJ rebuilds. Check Your AJ-V8 Supercharged XJ Super V8 → [link to quote form] Jaguar XJ Super V8 Engine Compatibility The XJ Super V8 uses a single engine family across the X350 generation — the supercharged 4.0-litre AJ-V8. Before we quote or supply anything, we confirm: Your exact generation (X350) Drivetrain and ancillary specification Any electronics or ECU considerations specific to your exact build This is why we always start with your registration rather than a generic XJ Super V8 quote — it protects you from paying for parts that don't fit your actual car. Jaguar XJ Super V8 Applications by Generation The XJ Super V8 was fitted to the X350 generation from 2002 to 2009 with the supercharged 4.0-litre AJ-V8. Jaguar XJ Super V8 Engines by Year Year Generation Engine Code Fuel Service 2002 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2003 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2004 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2005 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2006 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2007 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2008 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement 2009 X350 AJ-V8 supercharged Petrol Supercharged Rebuild / Replacement We Cover Every Jaguar XJ Super V8 Model Year: ✓ Jaguar XJ Super V8 2003 Engine Rebuild ✓ Jaguar XJ Super V8 2005 Engine Rebuild ✓ Jaguar XJ Super V8 2007 Engine Rebuild ✓ Jaguar XJ Super V8 2009 Engine Rebuild If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg. Jaguar XJ Super V8 Engine Sizes ✓ Jaguar XJ Super V8 4.0 Litre Engine (AJ-V8 supercharged) Jaguar XJ Super V8 Fuel Types ✓ Jaguar XJ Super V8 Petrol Supercharged Engine Rebuilds Jaguar XJ Super V8 Engine Costs A Jaguar XJ Super V8 engine rebuild starts from £5,500. A full replacement engine and fitting service is also available. Exact pricing depends on the condition of your existing engine and the parts required — submit your registration for a fixed-price quote within 30 minutes. Related Jaguar XJ Variants Looking for a different XJ engine? We also cover: [Jaguar XJ6 Engine →] · [Jaguar XJ8 Engine →] · [Jaguar XJR Engine →] · [Jaguar XJ 3.0d Engine →] · [Jaguar XJ 3.0 V6 Supercharged Engine →] · [Jaguar XJ 5.0 V8 Engine →] · [Jaguar XJ 5.0 V8 Supercharged Engine →] [← View All Jaguar XJ Engines] Frequently Asked Questions What engine does the Jaguar XJ Super V8 use? The XJ Super V8 uses the supercharged 4.0-litre AJ-V8, fitted across the X350 generation from 2002 to 2009. How much does a Jaguar XJ Super V8 engine rebuild cost? Rebuilds start from £5,500. Exact price depends on condition and parts required — submit your reg for a fixed-price quote. Which engine code is fitted to my XJ Super V8? Enter your registration on this page and we'll confirm your exact engine spec before you're quoted anything. Do you rebuild AJ-V8 supercharged XJ Super V8 engines? Yes. We service it to the same standard as our other XJ rebuilds. Do you supply used XJ Super V8 engines? Yes, in some cases a matched low-mileage used engine is the right option. Our team will advise honestly once we've matched your registration and understood your situation. Can you recover my XJ Super V8 if the engine has failed? Yes — nationwide recovery is available from £70, and most vehicles are collected within a few hours of booking. How long does an XJ Super V8 engine rebuild take? Most rebuilds are completed within 3-5 working days from the time your car arrives at our workshop. Is rebuilding better than fitting a used engine? For most XJ Super V8 owners, yes. A rebuild removes the compatibility risk that comes with an unknown used unit's history, and comes with a 12-month unlimited-mileage warranty — often longer and more comprehensive than what a used engine supplier offers. <a name="quote-form"></a> Get Your Free Jaguar XJ Super V8 Fixed-Price Quote [Quote Form: Registration Number | Postcode | Name | Phone | Email | Issue/Enquiry Type (dropdown: Engine Failure / Replacement Needed / General Enquiry) | Submit] Most quotes returned within 30 minutes during working hours. json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://jaguargarage.uk#organization", "name": "Jaguar Garage", "url": "https://jaguargarage.uk", "email": "info@jaguargarage.uk", "telephone": "+44 01268 944 234", "sameAs": [ "https://facebook.com/jaguarrebuildgarageuk", "https://twitter.com/jaguarrebuildgarageuk", "https://instagram.com/jaguarrebuildgarageuk", "https://tiktok.com/@jaguarrebuildgarageuk" ] }, { "@type": "AutoRepair", "@id": "https://jaguargarage.uk#autorepair", "name": "Jaguar Garage – XJ Super V8 Engine Rebuild Specialists", "url": "https://jaguargarage.uk/jaguar-xj-super-v8-engines", "telephone": "+44 01268 944 234", "email": "info@jaguargarage.uk", "priceRange": "£££", "address": { "@type": "PostalAddress", "streetAddress": "Unit A5 Windsor Road, Commercial Estate, Ramsden Heath", "addressLocality": "Billericay", "postalCode": "CM11 1QE", "addressCountry": "GB" }, "openingHours": "Mo-Fr 09:00-18:00, Sa 11:00-14:00", "areaServed": "GB", "parentOrganization": { "@id": "https://jaguargarage.uk#organization" }, "brand": { "@type": "Brand", "name": "Jaguar" } }, { "@type": "Service", "serviceType": "Jaguar XJ Super V8 Engine Rebuild & Replacement", "provider": { "@type": "AutoRepair", "name": "Jaguar Garage" }, "areaServed": "GB", "offers": { "@type": "Offer", "priceCurrency": "GBP", "price": "5500", "description": "Jaguar XJ Super V8 engine rebuild starting price" } }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What engine does the Jaguar XJ Super V8 use?", "acceptedAnswer": { "@type": "Answer", "text": "The XJ Super V8 uses the supercharged 4.0-litre AJ-V8, fitted across the X350 generation from 2002 to 2009." } }, { "@type": "Question", "name": "How much does a Jaguar XJ Super V8 engine rebuild cost?", "acceptedAnswer": { "@type": "Answer", "text": "Rebuilds start from £5,500. Exact price depends on condition and parts required — submit your reg for a fixed-price quote." } }, { "@type": "Question", "name": "Which engine code is fitted to my XJ Super V8?", "acceptedAnswer": { "@type": "Answer", "text": "Enter your registration on this page and we'll confirm your exact engine spec before you're quoted anything." } }, { "@type": "Question", "name": "Do you rebuild AJ-V8 supercharged XJ Super V8 engines?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We service it to the same standard as our other XJ rebuilds." } }, { "@type": "Question", "name": "Do you supply used XJ Super V8 engines?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, in some cases a matched low-mileage used engine is the right option. Our team will advise honestly once we've matched your registration and understood your situation." } }, { "@type": "Question", "name": "Can you recover my XJ Super V8 if the engine has failed?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — nationwide recovery is available from £70, and most vehicles are collected within a few hours of booking." } }, { "@type": "Question", "name": "How long does an XJ Super V8 engine rebuild take?", "acceptedAnswer": { "@type": "Answer", "text": "Most rebuilds are completed within 3-5 working days from the time your car arrives at our workshop." } }, { "@type": "Question", "name": "Is rebuilding better than fitting a used engine?", "acceptedAnswer": { "@type": "Answer", "text": "For most XJ Super V8 owners, yes. A rebuild removes the compatibility risk that comes with an unknown used unit's history, and comes with a 12-month unlimited-mileage warranty." } } ] } ] }
We continue to rebuild and replace AJ-V8 supercharged engines for every XJ Super V8 on the road.
Jaguar XJ Super V8 ENGINE CODES
A 3.0-litre inline-six petrol mild-hybrid engine fitted to the XJ Super V8 from 2023 to present. The AJ-V8 supercharged features an integrated starter-generator (ISG) and electric auxiliary compressor, making it a more modern and efficient design than the older AJ-V8 supercharged V6. We replace timing chains, bearings, water pump and gaskets as standard on every AJ-V8 supercharged rebuild.
Check Your AJ-V8 supercharged XJ Super V8Jaguar XJ Super V8 ENGINE COMPATIBILITY

The XJ Super V8 uses a single engine family across the X350 generation — the supercharged 4.0-litre AJ-V8. Before we quote or supply anything, we confirm:
Your exact generation (X350)
Drivetrain and ancillary specification
Any electronics or ECU considerations specific to your exact build
Any electronics or ECU considerations specific to your exact build
This is why we always start with your registration rather than a generic XJ quote — it protects you from paying for parts that don't fit your actual car.
MERCEDES XJ Super V8 APPLICATIONS BY GENERATION
Jaguar XJ Super V8 ENGINES BY YEAR
Jaguar XJ Super V8 has used the AJ-V8 supercharged throughout. If you're unsure of your exact spec, we'll confirm it before you book.
The AJ-V8 supercharged has been fitted to every XJ Super V8 since launch — if your registration year isn't listed above, get in touch and we'll confirm availability directly against your reg.
WE COVER EVERY Jaguar XJ Super V8 MODEL YEAR:
Jaguar XJ Super V8
2002 Engine Rebuild
Jaguar XJ Super V8
2003 Engine Rebuild
Jaguar XJ Super V8
2004 Engine Rebuild
Jaguar XJ Super V8
2005 Engine Rebuild
Jaguar XJ Super V8
2006 Engine Rebuild
Jaguar XJ Super V8
2007 Engine Rebuild
Jaguar XJ Super V8
2008 Engine Rebuild
Jaguar XJ Super V8
2009 Engine Rebuild
If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.
Jaguar XJ Super V8 ENGINE COSTS
A Jaguar XJ Super V8 engine rebuild starts from
£5,500
A full replacement engine and fitting service is also available. Exact pricing depends on the condition of your existing engine and the parts required — submit your registration for a fixed-price quote within 30 minutes.

12 MONTH
UNLIMITED-MILEAGE
WARRANTY
MERCEDES XJ Super V8 ENGINE SIZES
• Jaguar XJ Super V8 3.0 Litre Engine (AJ-V8 supercharged, I6)
MERCEDES XJ Super V8 FUEL TYPES
• Jaguar XJ Super V8 Petrol Mild Hybrid Engine Rebuilds
RELATED JAGUAR ENGINES
Most Jaguar XJ Super V8 engine rebuilds are completed within 3-5 working days.
Nationwide recovery and collection available for all Jaguar XJ Super V8 models.









