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Jaguar technician rebuilding a AMG GT 53 engine block
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Jaguar XK XKR (X100)Engine Rebuild— From £5,500

Specialist Jaguar XKR X100 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

AJ34 Supercharged Specialists

GB
Jaguar

Your Jaguar XK XKR (X100) Engine

Jaguar AMG GT 53 TwinPower Turbo engine

Vehicle

Jaguar XKR

Model

XK

Variant

XKR

Fuel

Petrol Supercharged

Engine

AJ34

Capacity

4.0L V8

Generations

X100 (1996–2006)

Rebuild From

£5,500

?

Not sure which engine you have?

The XK XKR (X100) uses the AJ34 3.0-litre inline-six mild-hybrid engine — enter your registration below and we'll confirm your exact spec before you get a quote.

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DVLA & VIN verified

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No obligation quote

Jaguar XK XKR (X100)Engine Rebuild Price

Starting From £5,500

AJ34 engine

Engine Code

AJ34

Rebuild From

£5,500

Generation

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

Get Your Fixed-Price Quote

Jaguar XK XKR (X100) Oil Leaks & Coolant System Wear (AJ34 I6)

The AJ34 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 AJ34 V6. We replace timing chains, bearings, water pump and gaskets as standard on every AJ34 rebuild.

Because the XK XKR (X100) uses a completely different engine family from the V8 M178 fitted to the XK 63 and GT 63 S, parts and rebuild specifications don't cross over between them.

Source: Established AJ34 specialist pattern — timing chain, bearing and gasket wear across integrated-starter-generator inline-six units.

Jaguar AMG GT 53 engine block

Jaguar XK XKR (X100)ENGINE OPTIONS

Every XK XKR (X100) is different. That's why we offer the right solution for your engine, your car and your budget.

01MOST POPULAR

REBUILDING YOUR XKR ENGINE

Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your XKR 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 XKR owners choose, and it's the one we'd recommend for most situations.

02

RECONDITIONED XKR 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.

03

REFURBISHED XKR 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.

04

REMANUFACTURED XKR 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 AJ34.

05

REPLACEMENT XKR 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.

06

USED XKR 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 AJ34 and talk you through the best solution for your XK XKR (X100), honestly.

Ask About Your Options

OUR WORKSHOP

RECOVERY COLLECTION01

RECOVERY COLLECTION

AJ34 ENGINE STRIPPED FOR REBUILD INSPECTION02

AJ34 ENGINE STRIPPED FOR REBUILD INSPECTION

VALVE COVERS & COOLANT COMPONENT WORK03

VALVE COVERS & COOLANT COMPONENT WORK

TECHNICIANS AT WORK04

TECHNICIANS AT WORK

ENGINE TESTING (RIG)05

ENGINE TESTING (RIG)

COMPLETED & READY FOR REFIT06

COMPLETED & READY FOR REFIT

Real photos from our workshop — not stock imagery. This is what a genuine Jaguar XK XKR (X100) rebuild looks like.

Jaguar XK XKR (X100) 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, bearings, water pump and gaskets 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 XK XKR (X100).

10Road Test

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

WHAT MERCEDES XK XKR (X100) OWNERS SAY

Daniel R.

Brilliant service from start to finish. My XK XKR (X100) runs smoother than ever. Honest advice, clear pricing and the team know their stuff.

Jaguar XK XKR (X100) Engine Rebuild

Mark T.

They rebuilt my AJ34 with all the updated parts. Smooth process and great communication throughout.

Jaguar XK XKR (X100) Engine Rebuild

Ryan P.

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

Jaguar XK XKR (X100) Engine Rebuild

Steve B.

Saved me thousands compared to a dealer quote. Fantastic workmanship and my XK XKR (X100) is running perfectly.

Jaguar XK XKR (X100) Engine Rebuild

Tom H.

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

Jaguar XK XKR (X100) Engine Rebuild

James K.

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

Jaguar XK XKR (X100) Engine Rebuild

WE COVER YOUREXACT VEHICLE

Enter your registration below and we'll confirm your Jaguar XK XKR (X100) has the AJ34, along with an exact rebuild price.

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FastAccurateNo Guesswork

WHY MERCEDES XK XKR (X100) 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 XK XKR (X100)

Jaguar XK XKR (X100)

RECOVERY

Jaguar XK XKR (X100)

Jaguar XK XKR (X100)

DIAGNOSTICS

Jaguar XK XKR (X100)

Jaguar XK XKR (X100)

STRIPPED ENGINE

Jaguar XK XKR (X100)

Jaguar XK XKR (X100)

TIMING CHAIN REPLACEMENT

Jaguar XK XKR (X100)

Jaguar XK XKR (X100)

IN FOR REBUILD

Jaguar XK XKR (X100)

Jaguar XK XKR (X100)

REBUILD IN PROGRESS

HOW IT WORKS

1

SEND YOURREGISTRATION

2

RECEIVE YOURFIXED-PRICE QUOTE

3

WE RECOVERYOUR CAR

4

REBUILD &REFIT

Most XK 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.

Jaguar engines on workshop pallets

LOOKING FOR A USED ORREPLACEMENT ENGINEINSTEAD?

We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most XK XKR (X100) 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.

Ask About Used Engine Options

ABOUT THE Jaguar XK XKR (X100) ENGINE

Jaguar AMG GT 53 engine and sedan

The XKR is the supercharged flagship of the first-generation XK range, built on the X100 chassis from 1996 to 2006. Under the bonnet sits the AJ34 — Jaguar's supercharged 4.0-litre V8, a development of the naturally aspirated AJ26 and AJ27 engines used in the XK8. Where the XK8 produced 290bhp, the XKR's supercharger pushed output to 370bhp, giving it serious performance credentials that still command respect today. The AJ34 engine is known among specialists for timing chain tensioner wear over time — a pattern shared with the naturally aspirated AJ26 and AJ27 units — which is why we replace tensioners and guides as standard on every rebuild.

We continue to rebuild and replace AJ34 engines for every XK XKR (X100) on the road.

Jaguar XK XKR (X100) ENGINE CODES

A 4.0-litre supercharged V8 fitted to the XKR from 1996 to 2006 across the X100 generation. Known for timing chain tensioner wear over time — see the callout above. We replace the timing chain, tensioners and guides as standard on every AJ34 rebuild. Check Your AJ34 XKR → [link to quote form]

Check Your AJ34 XK XKR (X100)

Jaguar XK XKR (X100) ENGINE COMPATIBILITY

Jaguar touring in workshop

The XKR X100 uses the AJ34 supercharged 4.0-litre V8. Before we quote or supply anything, we confirm:

Your exact engine code (AJ34) via registration or VIN

Your generation (X100)

Drivetrain and ancillary specification

Any ECU considerations specific to your exact build

This is why we always start with your registration rather than a generic XK quote — it protects you from paying for parts that don't fit your actual car.

Jaguar XK XKR (X100) APPLICATIONS BY GENERATION

Generation

Chassis

Years

Engine Code

Fuel

Generation

Generation

Chassis

Years

Engine Code

Fuel

X100

X100

X100

1996–2006

AJ34

Petrol Supercharged

Jaguar XK XKR (X100) ENGINES BY YEAR

Jaguar XK XKR (X100) has used the AJ34 throughout. If you're unsure of your exact spec, we'll confirm it before you book.

Year

Generation

Engine Code

Fuel

Service

1996

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

1997

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

1998

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

1999

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2000

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2001

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2002

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2003

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2004

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2005

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

2006

X100

AJ34

Petrol Supercharged

Rebuild / Replacement

i

The AJ34 has been fitted to every XK XKR (X100) 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 XK XKR (X100) MODEL YEAR:

Jaguar XK XKR (X100)
1996 Engine Rebuild

Jaguar XK XKR (X100)
1997 Engine Rebuild

Jaguar XK XKR (X100)
1998 Engine Rebuild

Jaguar XK XKR (X100)
1999 Engine Rebuild

Jaguar XK XKR (X100)
2000 Engine Rebuild

Jaguar XK XKR (X100)
2001 Engine Rebuild

Jaguar XK XKR (X100)
2002 Engine Rebuild

Jaguar XK XKR (X100)
2003 Engine Rebuild

Jaguar XK XKR (X100)
2004 Engine Rebuild

Jaguar XK XKR (X100)
2005 Engine Rebuild

Jaguar XK XKR (X100)
2006 Engine Rebuild

If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.

Jaguar XK XKR (X100) ENGINE COSTS

A Jaguar XK XKR (X100) 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.

Jaguar AMG GT 53 engine

12 MONTH

UNLIMITED-MILEAGE

WARRANTY

MERCEDES XK XKR (X100) ENGINE SIZES

Jaguar XK XKR (X100) 3.0 Litre Engine (AJ34, I6)

MERCEDES XK XKR (X100) FUEL TYPES

Jaguar XK XKR (X100) Petrol Mild Hybrid Engine Rebuilds

RELATED JAGUAR ENGINES

View All Jaguar Engines

Most Jaguar XK XKR (X100) engine rebuilds are completed within 3-5 working days.

Nationwide recovery and collection available for all Jaguar XK XKR (X100) models.

Jaguar AMG GT recovery and collection

FREQUENTLY ASKED QUESTIONS

Jaguar AMG GT in a dark showroom

JaguarGET YOUR FREE MERCEDES XK XKR (X100) FIXED-PRICE QUOTE

Most quotes returned within 30 minutes during working hours.