Jaguar XK8Engine Rebuild- From £4,500
Specialist Jaguar XK8 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
AJ26 & AJ27 Specialists
Your Jaguar XK8 Engine
Vehicle
Jaguar XK8
Model
XK
Variant
XK8
Fuel
Petrol
Engine
AJ26 or AJ27
Capacity
4.0L V8
Generations
X100 (1996-2006)
Rebuild From
£4,500
Not sure which engine you have?
The XK8 used two different engine codes across its production run - 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 XK8Engine Rebuild Price
Starting From £4,500
Engine Code
Rebuild From
£4,500
Generation
1996-1999
Jaguar XK8
Variant
4.0L Petrol
AJ26 or AJ27
Both engine codes sit on the same rebuild tier. Exact price depends on condition and parts required - submit your reg for a fixed-price quote.
Jaguar XK8 Timing Chain Tensioner Wear (X100, AJ26/AJ27)
If your XK8 is a first-generation (X100) model from 1996 to 2006 with the AJ26 or AJ27 V8 - that's the entire production run for the XK8 - timing chain tensioner wear is a well-documented pattern on this engine, established in Jaguar specialist circles. We replace the timing chain, tensioners, and guides as standard on every X100 V8 rebuild.
The later X150 generation uses a different engine (AJ-V8 Gen III), which doesn't share this specific issue.
Source: established pattern in Jaguar specialist circles (per G-BRF and VRF).
Jaguar XK8ENGINE OPTIONS
Every XK8 is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR XK8 ENGINE
Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your XK8 already has instead - strip it down, pressure-test it, and replace every worn or damaged component (timing chain, tensioners, and guides) 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 XK8 owners choose, and it's the one we'd recommend for most situations.
From £4,500RECONDITIONED XK8 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.
Learn moreREFURBISHED XK8 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.
Learn moreREMANUFACTURED XK8 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 on both the AJ26 and AJ27.
Learn moreREPLACEMENT XK8 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.
Learn moreUSED XK8 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.
Learn moreNOT SURE WHICH OPTION IS RIGHT FOR YOU?
Enter your registration below and we'll confirm your engine and talk you through the best solution for your XK8, honestly.
Ask About Your Options
OUR WORKSHOP
01RECOVERY COLLECTION
Jaguar XK8 recovered nationwide.
02STRIPPED ENGINE BLOCK
Jaguar XK8 [MISSING: engine code not independently confirmed in VRF] engine stripped for inspection.
03TIMING CHAIN REPLACEMENT
Jaguar XK8 timing chain and guides replaced.
04TECHNICIANS AT WORK
Jaguar XK8 engine rebuild in progress.
05ENGINE TESTING (RIG)
Jaguar XK8 [MISSING: engine code not independently confirmed in VRF] tested before dispatch.
06COMPLETED & READY FOR REFIT
Jaguar XK8 engine rebuilt to OEM specification.
Real photos from our workshop - not stock imagery. This is what a genuine Jaguar XK8 rebuild looks like.
Jaguar XK8 ENGINE REBUILD PROCESS
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your Jaguar XK8 has the right engine, along with an exact rebuild price.
WHY JAGUAR XK8 OWNERS CHOOSE US
Engine matched using VIN or registration number - confirms AJ26 vs AJ27 before you're quoted
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 XK8
RECOVERY
Jaguar XK8
DIAGNOSTICS
Jaguar XK8
STRIPPED ENGINE
Jaguar XK8
TIMING CHAIN REPLACEMENT
Jaguar XK8
IN FOR REBUILD
Jaguar XK8
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most XKs 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 XK8 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 and we'll show you every option, honestly.
ABOUT THE Jaguar XK8 ENGINE
The XK8 was Jaguar's V8 grand tourer, launched in 1996 and produced through to 2006. The XK8 specifically uses the 4.0-litre AJ-V8 family - the AJ26 from 1996 to 1999, and the AJ27 from 1999 to 2006 - both naturally aspirated petrol V8s. The AJ27 was an evolution of the AJ26, bringing improvements to the engine management and some internal components, but both engines share the same basic architecture and the same known wear pattern around the timing chain tensioners. The XK8 is no longer in production, but we continue to rebuild and replace engines for every one still on the road.
We continue to rebuild and replace engine engines for every XK8 on the road.
Jaguar XK8 ENGINE CODES
A 4.0-litre V8 fitted to the XK8 from 1996 to 1999 (X100). Known for timing chain tensioner wear - see the callout above. We replace the timing chain, tensioners, and guides as standard on every AJ26 rebuild.
Check Your AJ26 XK8A 4.0-litre V8 fitted to the XK8 from 1999 to 2006 (X100). The later evolution of the AJ26, it shares the same known pattern around timing chain tensioner wear. We replace the timing chain, tensioners, and guides as standard on every AJ27 rebuild.
Check Your AJ27 XK8
Jaguar XK8 ENGINE COMPATIBILITY
The XK8's AJ26 and AJ27 engines are both 4.0-litre V8s, and they share most major dimensions and ancillaries, but there are differences in engine management and some internal components that mean the two are not fully interchangeable. Before we quote or supply anything, we confirm:
Your exact engine code (AJ26 or AJ27) via registration or VIN
Your generation (X100)
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 XK8 quote - it protects you from paying for parts that don't fit your actual car.
Jaguar XK8 APPLICATIONS BY GENERATION
Generation
Chassis
Years
Engine Code
Fuel
Generation
Chassis
Years
Engine Code
Fuel
X100
X100
1996-2006
AJ26/AJ27
Petrol
Jaguar XK8 ENGINES BY YEAR
Jaguar XK8 has used the same engine throughout. If you're unsure of your exact spec, we'll confirm it before you book.
We Cover Every Jaguar XK8 Model Year:
- Jaguar XK8 1996 Engine Rebuild
- Jaguar XK8 1999 Engine Rebuild
- Jaguar XK8 2002 Engine Rebuild
- Jaguar XK8 2005 Engine Rebuild
- Jaguar XK8 2006 Engine Rebuild
If your registration year or model isn't listed above, get in touch - we'll confirm availability directly against your reg.
Jaguar XK8 Engine Details:
Jaguar XK8 4.0 Litre Engine (AJ26, V8) ✓ Jaguar XK8 4.0 Litre Engine (AJ27, V8)
Jaguar XK8 Petrol Engine Rebuilds
If your exact specification isn’t listed here, get in touch - we’ll confirm availability directly against your reg.
Jaguar XK8 Engine COSTS
A Jaguar XK8 engine rebuild starts from
£4,500,
whether your car has the AJ26 or the AJ27. 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.
JAGUAR XK8 ENGINE SIZES
• Jaguar XK8 4.0 Litre Engine (AJ26, V8) ✓ Jaguar XK8 4.0 Litre Engine (AJ27, V8)
JAGUAR XK8 FUEL TYPES
• Jaguar XK8 Petrol Engine Rebuilds
RELATED JAGUAR XK VARIANTS
Looking for a different XK engine? We also cover:
View All Jaguar XK Engines