Engines Market

JAGUAR XKR-S SPECIALISTS

Jaguar XKR-S Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Jaguar XKR-S engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective supply and fit solution for your high-performance grand tourer.

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Jaguar XKR-S Engine
from£5,900 to £8,500
  • Usedfrom £3,500
  • Reconditionedfrom £5,500
  • Common codesAJ34S, AJ133
Jaguar xk R-S Used Engine — AJ34SJaguar xkUsed Engine — AJ34SJaguar xk R-S Reconditioned Engine — AJ34SJaguar xkReconditioned Engine — AJ34SJaguar xk R-S Rebuilt Engine — AJ34SJaguar xkRebuilt Engine — AJ34S

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Jaguar XKR-S Engine History & Specs at a Glance

When the Jaguar XKR-S launched, it served as the limited-run, track-focused pinnacle of the X150 generation, featuring significantly upgraded cooling, suspension, and supercharger components over the standard XKR to handle extreme performance demands.

Jaguar XKR-S
  1. 2008

    XKR-S 4.2 introduced. AJ34S 4.2L supercharged V8, 420hp. Limited production run (e.g., 200 UK coupes) with identical power output to the standard XKR but distinct aerodynamic and chassis tuning.

  2. 2011

    XKR-S 5.0 launched. AJ133 5.0L supercharged Gen III V8, 550hp. Featured revised ECU mapping, upgraded supercharger cooling, and a significant power increase over the previous generation.

  3. 2013

    XKR-S GT 5.0 introduced as the ultimate, ultra-limited variant, retaining the 550hp AJ133 engine but with further track-focused aerodynamic and chassis refinements.

Every engine fitted to the Jaguar XKR-S is covered below, with UK rebuilt pricing and known failure points specific to these high-performance variants.

Engine Codes & Pricing

Jaguar XKR-S Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

AJ34S — 4.2L Supercharged Petrol (2008-2009) engine

AJ34S — 4.2L Supercharged Petrol (2008-2009)

Power Output
420hp
Years Fitted
2008-2009

Can’t find your exact engine code?-> Get quotes for AJ34S Jaguar XKR-S engine replacement

-> Get quotes for AJ34S Jaguar XKR-S engine replacement

Common Problems

Jaguar XKR-S Engine Problems Repair Cost vs Replacement

The Jaguar XKR-S reliability profile is heavily influenced by the inherent stresses of its supercharged AJ-V8 architecture. Supercharger coupler degradation, timing chain tensioner wear, and (on the 5.0L) oil pump drive failure are the most frequently reported issues. Every rebuilt Jaguar XKR-S engine supplied through EnginesMarket includes upgraded internal components specifically designed to address these original factory failure points, backed by a minimum 12-month unlimited mileage warranty.

Common failure points and repair options

Supercharger Coupler Failure

Affected
Jaguar XKR-S (AJ34S 4.2L & AJ133 5.0L, 2008-2014)
Typical failure mileage
40,000-70,000 miles
Root cause
The Eaton supercharger uses a nylon/plastic coupler between the snout shaft and rotor pack. Heat cycling and torsional stress cause the coupler to wear down, creating a rattle at idle and progressive boost loss.

Repair options

Repair tierDealer priceSpecialist price
Full Replacement - rebuilt engine£9,000-£13,000£6,500-£8,500
Our recommendation
Replace the coupler the moment you hear rattling from the front of the supercharger. At specialist prices (£800-£1,200), it is preventative maintenance that protects a £2,000+ supercharger. If you have already lost boost or hear grinding, opt for the full supercharger rebuild. XKR-S owners who ignore the rattle often face engine replacement when coupler debris circulates.
-> Get quotes for XKR-S supercharged engine replacement with upgraded couplers

Timing Chain Tensioner Failure

Affected
Jaguar XKR-S (AJ34S 4.2L & AJ133 5.0L, 2008-2014)
Typical failure mileage
50,000-90,000 miles
Root cause
Plastic timing chain tensioner shoes become brittle with heat cycles and oil contamination, then crack or shatter. Chain slack follows, skipping teeth on cam sprockets, leading to valve-to-piston contact.

Repair options

Repair tierDealer priceSpecialist price
Preventative Timing Chain Replacement£3,500-£5,000£1,800-£2,800
Post-Failure Repair£5,000-£7,500£3,000-£4,500
Full Replacement - rebuilt engine£9,000-£14,000£6,500-£8,500
Our recommendation
If you catch the rattle early and have no fault codes, preventative replacement at a specialist (£1,800-£2,800) is excellent value. Once the chain has slipped, we recommend going straight to a rebuilt engine. The labour overlap is significant, and the repaired engine still carries risk of hidden bottom end damage.
-> Compare rebuilt AJ-V8 engine prices for your Jaguar XKR-S

Oil Pump Drive Failure

Affected
Jaguar XKR-S 5.0 (AJ133, 2011-2014)
Typical failure mileage
40,000-70,000 miles (some fail below 30,000)
Root cause
The oil pump drive sleeve (connecting the crankshaft to the pump rotor) fractures due to inadequate material strength and harmonics. Oil pressure drops to zero without warning. The engine seizes within minutes.

Repair options

Repair tierDealer priceSpecialist price
Preventative Oil Pump Replacement£1,500-£2,500£900-£1,400
Full Replacement - rebuilt engine£9,000-£14,000£6,500-£8,500
Our recommendation
If your 5.0L XKR-S has no record of Recall JAG-19V-005 being performed, spend the £900-£1,400 on preventative oil pump replacement at a specialist. Once the pump fails and the engine seizes, replacement is your only reliable path. The post-failure repair cost approaches replacement cost with an inferior outcome.
-> Compare rebuilt 5.0L XKR-S engine prices with upgraded oil pump drive

Don't Let Engine Failure Write Off Your Jaguar XKR-S

Supercharger coupler wear, timing chain failure, and oil pump collapse are the three biggest threats to your XKR-S's AJ-V8. But none of them need to end your ownership. EnginesMarket connects you with UK Jaguar specialists who supply rebuilt engines with upgraded components - addressing every factory weakness at source. All units carry a 12-month unlimited mileage warranty, nationwide delivery is available, and supply & fit options remove the hassle. Compare prices today and get your XKR-S back on the road without the main dealer premium.

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FAQ

Jaguar XKR-S Engine ReplacementFrequently Asked Questions

Everything Jaguar XKR-S owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

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Comparing quotes is completely free and carries no obligation. By entering your registration, you ensure that every quote you receive is precisely matched to your exact Jaguar XKR-S variant (4.2L or 5.0L) and engine code, giving you peace of mind and transparent pricing from vetted UK premium specialists.

500+500+ Jaguar XKR-S engines supplied through our network
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