Jaguar Engine Specialists
JAGUAR AJ-V8 ENGINEREBUILD & REPLACEMENT
Specialist Jaguar AJ-V8 engine rebuilds and replacements, fitted across S-Type and XJ models. Nationwide recovery, registration-based engine matching, 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
Fitted Across 2 Jaguar Models
Starting from
£4,500
Jaguar AJ-V8 Engine Specifications
Engine Code
AJ-V8 (AJ26, AJ27, AJ28, AJ33, AJ34)
Manufacturer
Jaguar
Configuration
V8
Capacity
4.0L / 4.2L
Fuel
Petrol
Production Years
1996-2009
Used In
2 Jaguar models
Jaguar AJ-V8 Engine Rebuild Price
Starting From
£4,500
Every AJ-V8 application - 4.0L or 4.2L, naturally aspirated or supercharged - sits on the same V8 rebuild tier. Exact price depends on condition and parts required - submit your reg for a fixed-price quote.
Get Your Fixed-Price Quote →
Jaguar AJ-V8 Applications - Every Model & Variant
Not seeing your exact model?
Send us your registration and we'll confirm.
Jaguar AJ-V8 Rebuild Components
Replaced as Standard
- Main bearings and connecting rod bearings
- Complete gasket and seal set
- Timing chain components where required
- Oil filter housing gasket
Inspected and Measured
- Crankshaft
- Cylinder head
- Timing chain tensioners
- Timing chain guides
Inspected and Measured
- Oil pump
- Cooling system components
- Fuel injectors
- PCV system
Application-Dependent
- Supercharger components (AJ27S, AJ33S)
Components drawn directly from Master Engine Data File. If your AJ-V8's exact specification isn't covered above, we confirm the full scope once your engine is inspected - not guessed in advance.
OUR WORKSHOP
01RECOVERY COLLECTION
02STRIPPED AJ-V8 BLOCK
03INTERNAL ENGINE WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & READY FOR REFIT
Real photos from our workshop - not stock imagery.
JAGUAR AJ-V8 ENGINE REBUILD PROCESS
WE COVER YOUREXACT VEHICLE
WHY CHOOSE US FOR JAGUAR AJ-V8 REBUILDS
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 RECENTJAGUAR 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 S-Type
RECOVERY
Jaguar XJ
DIAGNOSTICS
Jaguar S-Type
STRIPPED ENGINE
Jaguar XJ
TIMING CHAIN REPLACEMENT
Jaguar S-Type
IN FOR REBUILD
Jaguar XJ
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most cars 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.
ABOUT THE
JAGUAR AJ-V8 ENGINE
The AJ-V8 is Jaguar's first-generation V8 petrol engine, produced from 1996 to 2009. It was offered in 4.0L and 4.2L capacities across naturally aspirated and supercharged variants, powering the S-Type and XJ model lines throughout their X200 and X308/X350 generations. This engine family includes the AJ26, AJ27, AJ28, AJ33, and AJ34 variants - each representing specific displacement, generation, or forced-induction configurations within the same base architecture.
JAGUAR AJ-V8
APPLICATIONS BY MODEL
Across the S-Type, the AJ-V8 powered the 4.0 V8 and 4.2 V8 variants (X200 generation, 1999-2008), available in both naturally aspirated and supercharged forms. The XJ received the AJ-V8 across two generations - the X308 (1997-2003) and X350 (2002-2009) - powering the XJ8 and XJR variants, with supercharged versions delivering higher output for the performance-oriented XJR.
JAGUAR AJ-V8
ENGINE COMPATIBILITY
Because the AJ-V8 spans multiple displacements and supercharged/naturally aspirated configurations across two different model lines, compatibility requires careful matching. A 4.0L AJ26 from an XJ isn't a drop-in match for a 4.2L AJ34 from an S-Type, even though they share the same engine family - ancillaries, mounting, and ECU calibration all differ. Before we quote or supply anything, we confirm your exact vehicle by registration or VIN.
MODEL
Confirm your exact model and variant.
GENERATION
Identify the correct generation (X200, X308/X350).
DRIVETRAIN
Drivetrain and ancillary specification.
CONFIRMED BY REGISTRATION
We confirm by registration/VIN before quoting or supplying anything.
Jaguar AJ-V8
Applications We Work On
AJ-V8 in the S-Type (X200, 1999-2008)
The AJ-V8 in the S-Type is one of the applications we work on regularly, across both the 4.0 V8 and 4.2 V8 variants.
Starting from:
£4,500
AJ-V8 in the XJ (X308/X350, 1997-2009)
The AJ-V8 in the XJ is one of the applications we work on regularly, across both the XJ8 and XJR variants, covering the X308 and X350 generations. Jaguar AJ-V8 by Powertrain Variant AJ-V8 Naturally Aspirated Applications: S-Type 4.0 V8, S-Type 4.2 V8, XJ XJ8. Standard rebuild scope - timing chain, bearings, gaskets. AJ-V8 Supercharged Applications: S-Type R (supercharged V8), XJ XJR (supercharged). Supercharged variants require additional specialist attention to the supercharger components during a rebuild.
Starting from:
£4,500
MODEL
Jaguar S-Type X200
ENGINE
AJ-V8 4.0L / 4.2L
YEAR
1999 - 2008
STARTING FROM
£4,500
Not seeing your exact model above? Send us your registration and we'll confirm your exact spec.
OUR WORKSHOP VIEW OF
THE JAGUAR AJ-V8
Built, rebuilt and tested by engineers who work on Jaguar engines every day.
Here's our practical view of the AJ-V8 across its S-Type X200, XJ X308/X350 applications.
APPLICATIONS WE SEE:
The AJ-V8 spans the S-Type and XJ model lines across naturally aspirated and supercharged variants - a broad range of applications within a single engine family.
WHAT WE REPLACE:
Timing chain, bearings, gaskets, and seals as standard on every rebuild, with supercharger components additionally accounted for on AJ27S and AJ33S applications.
KNOWN ISSUES:
Early AJ-V8 engines (1997-2000) are known for plastic timing chain tensioner failure - the primary guides crack and break off, with pieces ending up in the sump. Cylinder bore problems and Nikasil cylinder lining issues were also present on early engines, resolved by 2002 when later engines used cast-iron linings.
AJ-V8 REBUILD INFORMATION
Typical rebuild scope:
A TYPICAL
JAGUAR AJ-V8 REBUILD
The following describes a typical rebuild scope for this engine - illustrative of the work involved, not a specific customer job. Real case studies from our own completed work will replace this section once available.
Early AJ-V8 engines (1997-2000) are known for plastic timing chain tensioner failure - the primary guides crack and break off, with pieces ending up in the sump. We inspect the timing system thoroughly on every rebuild. Supercharged variants (XJR, S-Type R) require additional specialist attention beyond the naturally aspirated scope.
01INSPECTION & STRIP-DOWN
Careful inspection of the crankshaft, cylinder head, and timing chain components during strip-down.
02COMPONENT REPLACEMENT
Main bearings, connecting rod bearings, gaskets, seals, and timing chain components replaced as required.
03QUALITY CHECKS
All major rotating assemblies, oil pump, and cooling system components inspected for long-term reliability.
Typical Scope:
Timing chain, tensioners, guides, bearings, gaskets, plus supercharger components on AJ27S/AJ33S applications
Starting From:
£4,500
Jaguar AJ-V8
ENGINE REBUILD COST
A Jaguar AJ-V8 engine rebuild starts from £4,500, regardless of which model it's fitted to - the price tier is set by the engine, not the badge on the boot.
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.
Starting From
£4,500
Get a fixed-price quote within 30 minutes.
MODEL
Jaguar S-Type X200
ENGINE
AJ-V8 4.0L / 4.2L
YEAR
1999 - 2008
STARTING FROM
£4,500
JAGUAR AJ-V8 REBUILD VS REPLACEMENT VS USED
Rebuilding Your AJ-V8 Engine
Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your Jaguar 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 AJ-V8 owners choose, and it's the one we'd recommend for most situations.
- Strip down & inspect
- Pressure-test
- Replace worn components
- 12-month unlimited-mileage warranty
Replacement AJ-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 unlimited-mileage warranty.
- Supplied & fitted by our team
- OEM quality
- 12-month unlimited-mileage warranty
Used AJ-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, especially given how many different AJ-V8 variants exist across the Jaguar range. Enter your reg below and we'll talk you through both options honestly.
- Low-mileage units
- Quick turnaround
- Condition risk - we advise honestly
Enter your registration and we’ll talk you through both options honestly.
Reconditioned, Refurbished or Remanufactured?
JAGUAR AJ-V8 RECONDITIONED 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.
→ Our rebuild service is exactly that.
JAGUAR AJ-V8 REFURBISHED ENGINES
"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.
→ Our rebuild service covers this.
JAGUAR AJ-V8 REMANUFACTURED 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, regardless of which of the two AJ-V8-equipped models you drive. Jaguar AJ-V8 Rebuilt vs Reconditioned vs Remanufactured - Terminology Explained Rebuilt: Existing engine stripped, inspected and rebuilt to original specification. Reconditioned: Broad industry term; we define our rebuild as a full strip and rebuild. Remanufactured: Usually implies a defined restoration process; our rebuild meets this standard. Used: Existing engine from another vehicle; we can source and fit these. What Jaguar Garage Means by "Rebuild": Full strip-down, inspection, measurement, machining where required, replacement of worn components, reassembly, testing, and refit - with a 12-month unlimited-mileage warranty.
→ That’s consistent with what our rebuild service delivers.
FREQUENTLY ASKED QUESTIONS
GET YOUR FREE
JAGUAR AJ-V8FIXED-PRICE QUOTE
FIXED PRICE
Transparent quotes with no hidden extras.
12-MONTH WARRANTY
Unlimited mileage for total peace of mind.
QUICK RESPONSE
Most quotes returned within 30 minutes during working hours.
