Jaguar XJREngine Rebuild- From £5,500
Specialist Jaguar XJR engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty
Rated Jaguar Engine Specialists
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 XJR Engine
Vehicle
Jaguar XJR
Model
XJ
Variant
XJR
Fuel
Petrol Supercharged
Engine
AJ16, AJ-V8, AJ133S
Capacity
4.0L - 5.0L
Generations
X300 (1994-1997) · X308 (1997-2003) · X350 (2002-2009) · X351 (2009-2019)
Rebuild From
£5,500
Not sure which engine you have?
The XJR used different supercharged engines across its generations - 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 XJREngine Rebuild Price
Starting From £5,500
Engine Code
Rebuild From
£5,500
Generation
X308 / X350
Jaguar XJR
Variant
4.0L Petrol Supercharged
AJ16, AJ-V8, AJ133S
We also rebuild the early AJ16 supercharged inline-six (X300) - please submit your registration for a confirmed price on this engine.
Exact price depends on condition and parts required - submit your reg for a fixed-price quote.
Jaguar XJR AJ133S Timing Chain Tensioner & Water Pump Issue (X351)
If your XJR is an X351-generation model (2009-2019) with the AJ133S 5.0-litre supercharged V8 - that engine shares the confirmed timing chain tensioner and guide design flaw found across several JLR models, and was the subject of a US class-action lawsuit. The hardened steel tensioner piston can wear the aluminium guide button over time, and the water pump may suffer bearing/seal failure, sometimes under 20,000 miles. We replace the timing chain, tensioners, guides and water pump as standard on every AJ133S rebuild.
Earlier XJR generations - X300 with the AJ16 supercharged inline-six, and X308/X350 with the earlier AJ-V8 supercharged units - use different engine designs and do not share this specific issue.
Source: verified via multiple independent sources (kmotors.co.uk, rrsport.co.uk lawsuit reference, TopSpeed), per VRF-jaguar-xj.md. AJ16 and AJ-V8 supercharged explicitly excluded from this claim per VRF.
Jaguar XJRENGINE OPTIONS
Every XJR is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR XJR ENGINE
Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your XJR already has instead - strip it down, pressure-test it, and replace every worn or damaged component (timing chain, tensioners, guides and water pump on the AJ133S; other components as required on earlier engines) 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 XJR owners choose, and it's the one we'd recommend for most situations.
From £5,500REPLACEMENT XJR 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 XJR 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 XJR, honestly.
Ask About Your Options
OUR WORKSHOP
01RECOVERY COLLECTION
Jaguar XJR recovered nationwide.
02STRIPPED ENGINE BLOCK
Jaguar XJR [MISSING: engine code not independently confirmed in VRF] engine stripped for inspection.
03TIMING CHAIN REPLACEMENT
Jaguar XJR timing chain and guides replaced.
04TECHNICIANS AT WORK
Jaguar XJR engine rebuild in progress.
05ENGINE TESTING (RIG)
Jaguar XJR [MISSING: engine code not independently confirmed in VRF] tested before dispatch.
06COMPLETED & READY FOR REFIT
Jaguar XJR engine rebuilt to OEM specification.
Real photos from our workshop - not stock imagery. This is what a genuine Jaguar XJR rebuild looks like.
Jaguar XJR ENGINE REBUILD PROCESS
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your Jaguar XJR has the right engine, along with an exact rebuild price.
WHY JAGUAR XJR OWNERS CHOOSE US
Engine matched using VIN or registration number - confirms which supercharged engine you have 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 XJR
RECOVERY
Jaguar XJR
DIAGNOSTICS
Jaguar XJR
STRIPPED ENGINE
Jaguar XJR
TIMING CHAIN REPLACEMENT
Jaguar XJR
IN FOR REBUILD
Jaguar XJR
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 XJR 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 XJR ENGINE
The XJR has been part of the XJ range since 1994, and across its four generations has used three different supercharged engines - from the AJ16 inline-six through to the AJ133S V8. The full breakdown by engine code is below.
The XJR is no longer in production, but we continue to rebuild and replace engines for every one still on the road.
Jaguar XJR ENGINE CODES
AJ16 (X300)
A 4.0-litre supercharged inline-six fitted to the XJR from 1994 to 1997 (X300 generation). This was the last of the classic Jaguar six-cylinder engines before the switch to V8s. No specific known issue pattern is independently confirmed for this application, but we rebuild it to the same standard as our other XJR engines.
Check Your AJ16 XJRAJ-V8 Supercharged (X308 / X350)
A 4.0-litre (X308, 1997-2003) or 4.2-litre (X350, 2002-2009) supercharged V8. This family powered the XJR through two generations and is generally robust, though we always inspect timing chain components and gaskets during a rebuild.
Check Your AJ-V8 XJRAJ133S (X351)
The 5.0-litre supercharged V8 fitted to the XJR from 2009 to 2019. Known for the timing chain tensioner and guide design flaw, plus water pump bearing/seal failure (see the callout above). We replace the timing chain, tensioners, guides and water pump as standard on every AJ133S rebuild.
Check Your AJ133S XJR
Jaguar XJR ENGINE COMPATIBILITY
Because the XJR spans three distinct supercharged engines across four generations, fitting the wrong replacement - or assuming an earlier engine's parts will work on a later car - risks a compatibility problem that's expensive to unpick. Before we quote or supply anything, we confirm:
Your exact engine code (AJ16, AJ-V8 or AJ133S) via registration or VIN
Your generation (X300, X308, X350 or X351)
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 XJR quote - it protects you from paying for parts that don't fit your actual car.
Jaguar XJR APPLICATIONS BY GENERATION
Generation
Chassis
Years
Engine Code
Fuel
Generation
Chassis
Years
Engine Code
Fuel
X300
X300
1994-1997
AJ16
Petrol Supercharged
X308
X308
1997-2003
AJ-V8
Petrol Supercharged
X350
X350
2002-2009
AJ-V8
Petrol Supercharged
X351
X351
2009-2019
AJ133S
Petrol Supercharged
Jaguar XJR ENGINES BY YEAR
Jaguar XJR 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 XJR Model Year:
- Jaguar XJR 1996 Engine Rebuild
- Jaguar XJR 2000 Engine Rebuild
- Jaguar XJR 2005 Engine Rebuild
- Jaguar XJR 2012 Engine Rebuild
- Jaguar XJR 2018 Engine Rebuild
If your registration year or model isn't listed above, get in touch - we'll confirm availability directly against your reg.
Jaguar XJR Engine Details:
Jaguar XJR 4.0 Litre Engine (AJ16, X300)
Jaguar XJR 4.0 Litre Engine (AJ-V8, X308)
Jaguar XJR 4.2 Litre Engine (AJ-V8, X350)
Jaguar XJR 5.0 Litre Engine (AJ133S, X351)
Jaguar XJR Petrol Supercharged Engine Rebuilds
If your exact specification isn’t listed here, get in touch - we’ll confirm availability directly against your reg.
Jaguar XJR Engine COSTS
A Jaguar XJR engine rebuild starts from
£5,500
for the supercharged V8 models (AJ-V8 and AJ133S). Pricing for the early AJ16 supercharged inline-six is confirmed on registration. 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 XJR ENGINE SIZES
• Jaguar XJR 4.0 Litre Engine (AJ16, X300)
• Jaguar XJR 4.0 Litre Engine (AJ-V8, X308)
• Jaguar XJR 4.2 Litre Engine (AJ-V8, X350)
• Jaguar XJR 5.0 Litre Engine (AJ133S, X351)
JAGUAR XJR FUEL TYPES
• Jaguar XJR Petrol Supercharged Engine Rebuilds
RELATED JAGUAR XJ VARIANTS
Looking for a different XJ engine? We also cover: