Jaguar Garage - JAGUAR ENGINE REBUILD SPECIALISTS
Jaguar technician rebuilding an engine block
Jaguar

Jaguar XJ 5.0 V8 SuperchargedEngine Rebuild- From £5,500

Specialist Jaguar XJ 5.0 V8 Supercharged 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

AJ133S Specialists

GB
Jaguar

Your Jaguar XJ 5.0 V8 Supercharged Engine

Jaguar Ingenium engine

Vehicle

Jaguar XJ 5.0 V8 Supercharged

Model

XJ

Variant

XJ 5.0 V8 Supercharged

Fuel

Petrol Supercharged

Engine

AJ133S

Capacity

5.0L V8

Generations

X351 (2009-2019)

Rebuild From

£5,500

?

Not sure which engine you have?

The XJ 5.0 V8 Supercharged uses the AJ133S - enter your registration below and we'll confirm your exact spec before you get a quote.

GB

DVLA & VIN verified

100% secure & private

No obligation quote

Jaguar

Jaguar XJ 5.0 V8 SuperchargedEngine Rebuild Price

Starting From £5,500

AJ133S

Engine Code

AJ133S engine

Rebuild From

£5,500+

X351

Generation

X351 engine

2009-2019

Jaguar XJ 5.0 V8 Supercharged

XJ 5.0 V8 Supercharged

Variant

XJ 5.0 V8 Supercharged engine

5.0L Petrol Supercharged

AJ133S

AJ133S sits on a single rebuild tier.

Exact price depends on condition and parts required - submit your reg for a fixed-price quote.

Get Your Fixed-Price Quote

Jaguar XJ 5.0 V8 Supercharged Timing Chain Tensioner & Water Pump

If your XJ is a 2009-2019 model with the AJ133S supercharged V8 - that's the X351 generation - timing chain tensioner and guide wear is a well-documented pattern on this engine, backed by a US class-action lawsuit covering this exact engine across multiple JLR models. The hardened steel tensioner piston wears an aluminium guide button over time, which can fail with no warning. We replace the timing chain, tensioners and guides as standard on every AJ133S rebuild.

The water pump on these engines also shows bearing and seal failure, sometimes under 20,000 miles, due to coolant ingress - we replace it as standard too.

Source: verified via multiple independent sources (kmotors.co.uk, rrsport.co.uk lawsuit reference, TopSpeed reliability ranking), per VRF-jaguar-xj.md. Timing chain tensioner design flaw and water pump failure confirmed for AJ133/AJ133S engines, particularly 2012-2014 models, per X351 row.

Jaguar XJ 5.0 V8 SuperchargedENGINE OPTIONS

Every XJ 5.0 V8 Supercharged is different. That's why we offer the right solution for your engine, your car and your budget.

01MOST POPULAR

REBUILDING YOUR XJ 5.0 V8 SUPERCHARGED ENGINE

Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your XJ already has instead - strip it down, pressure-test it, and replace every worn or damaged component (timing chain, tensioners, guides and water pump) 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 owners choose, and it's the one we'd recommend for most situations.

From £5,500
02

RECONDITIONED XJ 5.0 V8 SUPERCHARGED 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 more
03

REFURBISHED XJ 5.0 V8 SUPERCHARGED 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 more
04

REMANUFACTURED XJ 5.0 V8 SUPERCHARGED 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 the AJ133S.

Learn more
05

REPLACEMENT XJ 5.0 V8 SUPERCHARGED 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 more
06

USED XJ 5.0 V8 SUPERCHARGED 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 more

NOT SURE WHICH OPTION IS RIGHT FOR YOU?

Enter your registration below and we'll confirm your AJ133S and talk you through the best solution for your XJ 5.0 V8 Supercharged, honestly.

Ask About Your Options

OUR WORKSHOP

Jaguar
RECOVERY COLLECTION01

RECOVERY COLLECTION

Jaguar XJ 5.0 V8 Supercharged recovered nationwide.

STRIPPED ENGINE BLOCK02

STRIPPED ENGINE BLOCK

Jaguar XJ 5.0 V8 Supercharged AJ133S engine stripped for inspection.

TIMING CHAIN REPLACEMENT03

TIMING CHAIN REPLACEMENT

Jaguar XJ 5.0 V8 Supercharged timing chain and guides replaced.

TECHNICIANS AT WORK04

TECHNICIANS AT WORK

Jaguar XJ 5.0 V8 Supercharged engine rebuild in progress.

ENGINE TESTING (RIG)05

ENGINE TESTING (RIG)

Jaguar XJ 5.0 V8 Supercharged AJ133S tested before dispatch.

COMPLETED & READY FOR REFIT06

COMPLETED & READY FOR REFIT

Jaguar XJ 5.0 V8 Supercharged engine rebuilt to OEM specification.

Real photos from our workshop - not stock imagery. This is what a genuine Jaguar XJ 5.0 V8 Supercharged rebuild looks like.

Jaguar XJ 5.0 V8 Supercharged ENGINE REBUILD PROCESS

1Diagnosis

We confirm your exact engine code and assess the damage.

2Removal

Your engine is removed and brought into our workshop.

3Strip-Down

Every component is removed for individual inspection.

4Inspection

Crankshaft, cylinder head, timing chain, tensioners, guides and water pump are all checked.

5Machine Work

Any machining required is carried out to OEM tolerances.

6Component Replacement

Worn or damaged parts are replaced with updated OEM components.

7Reassembly

Your engine is rebuilt to original specification.

8Testing

Every rebuild is pressure-tested before refit.

9Refit

Your engine goes back into your XJ.

10Road Test

A full road test confirms everything's right before we hand your car back.

WHAT JAGUAR XJ 5.0 V8 Supercharged OWNERS SAY

Daniel R.

“Brilliant service from start to finish. My XJ 5.0 V8 Supercharged runs smoother than ever. Honest advice, clear pricing and the team know their stuff.”

See on Google

Mark T.

“They rebuilt my AJ133S with all the updated parts. Smooth process and great communication throughout.”

See on Trustpilot

Ryan P.

“Top lads, top job. Picked up and dropped off, engine rebuilt to an extremely high standard. 100% recommend.”

See on Google

Steve B.

“Saved me thousands compared to a dealer quote. Fantastic workmanship and my XJ 5.0 V8 Supercharged is running perfectly.”

See on Trustpilot

Tom H.

“From quote to collection couldn't fault them. Engine looks brand new inside. Warranty gives great peace of mind.”

See on Google

James K.

“Professional, reliable and fairly priced. Sorted properly and kept me updated throughout.”

See on Trustpilot

WE COVER YOUREXACT VEHICLE

Enter your registration below and we'll confirm your Jaguar XJ 5.0 V8 Supercharged has the AJ133S, along with an exact rebuild price.

GB
FastAccurateNo Guesswork

WHY JAGUAR XJ 5.0 V8 Supercharged OWNERS CHOOSE US

Engine matched using VIN or registration number - confirms AJ133S 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 XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

RECOVERY

Jaguar XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

DIAGNOSTICS

Jaguar XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

STRIPPED ENGINE

Jaguar XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

TIMING CHAIN REPLACEMENT

Jaguar XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

IN FOR REBUILD

Jaguar XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged

REBUILD IN PROGRESS

HOW IT WORKS

1

SEND YOURREGISTRATION

2

RECEIVE YOURFIXED-PRICE QUOTE

3

WE RECOVERYOUR CAR

4

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 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.

Jaguar engines on workshop pallets

ABOUT THE Jaguar XJ 5.0 V8 Supercharged ENGINE

Jaguar E-Pace and Ingenium engine

The XJ 5.0 V8 Supercharged uses the AJ133S - a 5.0-litre supercharged V8 petrol engine. It was fitted from 2009 to 2019 across the X351 generation, representing the flagship performance option in the XJ range alongside the naturally aspirated 5.0 V8 and the supercharged V6 models. The AJ133S is part of Jaguar's Gen III AJ-V8 family and shares the same timing chain tensioner design pattern as other JLR vehicles of this era.

]

Jaguar XJ 5.0 V8 Supercharged ENGINE CODES

AJ133S

AJ133S

A 5.0L V8 Petrol Supercharged engine fitted to the XJ 5.0 V8 Supercharged - X351 (2009-2019).

Check Your AJ133S XJ 5.0 V8 Supercharged

Jaguar XJ 5.0 V8 Supercharged ENGINE COMPATIBILITY

Black Jaguar E-Pace in a workshop

The XJ 5.0 V8 Supercharged uses the AJ133S engine exclusively across its entire 2009-2019 production run. Before we quote or supply anything, we confirm:

Your exact engine code (AJ133S) via registration or VIN

Your generation (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 XJ quote - it protects you from paying for parts that don't fit your actual car.

Jaguar XJ 5.0 V8 Supercharged APPLICATIONS BY GENERATION

Generation

Chassis

Years

Engine Code

Fuel

X351

X351

X351

2009-2019

AJ133S

Petrol Supercharged

Jaguar XJ 5.0 V8 Supercharged ENGINES BY YEAR

Jaguar XJ 5.0 V8 Supercharged has used the AJ133S throughout. If you're unsure of your exact spec, we'll confirm it before you book.

Year

Generation

Engine Code

Fuel

Service

2009

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2010

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2011

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2012

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2013

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2014

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2015

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2016

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2017

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2018

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

2019

X351

AJ133S

Petrol Supercharged

Rebuild / Replacement

i

We Cover Every Jaguar XJ 5.0 V8 Supercharged Model Year:

  • Jaguar XJ 5.0 V8 Supercharged 2012 Engine Rebuild
  • Jaguar XJ 5.0 V8 Supercharged 2014 Engine Rebuild
  • Jaguar XJ 5.0 V8 Supercharged 2016 Engine Rebuild
  • Jaguar XJ 5.0 V8 Supercharged 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 XJ 5.0 V8 Supercharged Engine Details:

Jaguar XJ 5.0 V8 Supercharged 5.0 Litre Engine (AJ133S)

Jaguar XJ 5.0 V8 Supercharged Petrol Supercharged Engine Rebuilds

If your exact specification isn’t listed here, get in touch - we’ll confirm availability directly against your reg.

Jaguar XJ 5.0 V8 Supercharged Engine COSTS

A Jaguar XJ 5.0 V8 Supercharged engine rebuild starts from

£5,500

Jaguar engine

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 XJ 5.0 V8 Supercharged ENGINE SIZES

• Jaguar XJ 5.0 V8 Supercharged 5.0 Litre Engine (AJ133S)

JAGUAR XJ 5.0 V8 Supercharged FUEL TYPES

• Jaguar XJ 5.0 V8 Supercharged Petrol Supercharged Engine Rebuilds

FREQUENTLY ASKED QUESTIONS

Black Jaguar E-Pace in a dark showroom

GET YOUR FREE Jaguar XJ 5.0 V8 Supercharged FIXED-PRICE QUOTE

Most quotes returned within 30 minutes during working hours.