

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

Your Jaguar XK XKR (X100) 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.
DVLA & VIN verified
100% secure & private
No obligation quote
Jaguar XK XKR (X100)Engine Rebuild Price
Starting From £5,500

Engine Code
AJ34Rebuild From
£5,500

Generation
Exact price depends on condition and parts required — submit your reg for a 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 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.
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.
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.
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.
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.
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.
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 OptionsOUR WORKSHOP
01RECOVERY COLLECTION
02AJ34 ENGINE STRIPPED FOR REBUILD INSPECTION
03VALVE COVERS & COOLANT COMPONENT WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & 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
WHAT MERCEDES XK XKR (X100) OWNERS SAY
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.
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)
RECOVERY

Jaguar XK XKR (X100)
DIAGNOSTICS

Jaguar XK XKR (X100)
STRIPPED ENGINE

Jaguar XK XKR (X100)
TIMING CHAIN REPLACEMENT

Jaguar XK XKR (X100)
IN FOR REBUILD

Jaguar XK XKR (X100)
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
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.

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.
ABOUT THE Jaguar XK XKR (X100) ENGINE

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

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
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.
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.

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
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.









