How much does a Jaguar XKR‑S engine replacement cost in the UK?

A reconditioned AJ133 5.0 supercharged V8 engine typically costs £6,000–£9,000 supply only. Fitting adds £1,100–£1,800. Main dealer new engines can exceed £30,000. Timing chain replacement alone can cost £1,500–£4,000 if caught early. Use our calculator for a figure specific to your car.

What are the common problems with the Jaguar XKR‑S?

Water pump failure (the number one issue), timing chain tensioner failure (the most catastrophic), valley coolant pipe leaks under the supercharger, and supercharger snout bearing wear. The timing chain is the most critical - if it slips, pistons meet valves, and the engine is usually scrap.

Is it worth replacing a Jaguar XKR‑S engine, or should I scrap the car?

Depends on vehicle value. Against a well‑kept XKR‑S worth £25,000–£50,000, a £7,500 recon is a manageable 15–30% of the vehicle's value - worth it for a well‑maintained example. Given the XKR‑S's status as Jaguar's ultimate V8 and its strong retained values, replacement is usually viable.

How do I find my Jaguar XKR‑S engine code?

Listed on the VIN plate and vehicle documentation. The XKR‑S uses the AJ133 5.0‑litre supercharged V8, engine code 508PS. Tell us your registration date and we'll confirm it for free.

Can I repair the AJ133's timing chain, or does it need a new engine?

Yes - if caught early. A timing chain and tensioner replacement (£1,500–£4,000) is far cheaper than a catastrophic chain slip (£6,000–£12,000 engine replacement). At the first sign of cold‑start rattle, book an inspection immediately. The tensioner is a known weak point - replacing it with updated parts is strongly recommended.

Jaguar XK XKR‑S2011–2014AJ133 5.0 Supercharged V8

Jaguar XK XKR‑S Engine Replacement - Compare Prices & Get Quotes

Get quotes today from trusted UK Jaguar XKR‑S specialists. Compare reconditioned, rebuilt and used AJ133 5.0 V8 engines for the ultimate XK - supply & fit available nationwide.

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Jaguar XKR‑S Engines - from £3,500 to £12,000Code: AJ133 / 508PS

Jaguar XKR‑S Engines - from £3,500 to £12,000· Code: AJ133 / 508PS

Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK‑Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK‑Wide Network

The XKR‑S THROUGH TIME Era Map

Four generations. Four eras. One guide to reliability, costs and what really matters.

Era Note

Jaguar's ultimate V8 - 550 PS, 186 mph; water pump, timing chain tensioners and valley coolant pipes are the main watchpoints.

GenerationYearsEngine CodeReliabilityRecon CostEra Note

2011–2014AJ133 (508PS - 5.0 Supercharged V8)★★★☆☆ [NEWLY ASSIGNED - see Data Note]£6,000–£10,000 [JAG‑QUOTE]Jaguar's ultimate V8 - 550 PS, 186 mph; water pump, timing chain tensioners and valley coolant pipes are the main watchpoints.

Why use this era map?

Every cost guide, reliability rating and engine code on this page is aligned to the data above. This keeps everything consistent and trustworthy.

Real UK Cost Data

Verified Reliability

Expert Insights

Updated for 2025

Jaguar XK XKR‑S Engine Replacement Costs

Supply Only£6,000–£9,000

Fitted (Indie)£7,100–£10,400

Warranty12–24 months

Best ForMost owners - best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£3,500–£6,500£4,400–£7,7003–6 monthsBudget priority; vehicle under £15,000

Reconditioned Engine£6,000–£9,000£7,100–£10,40012–24 monthsMost owners - best cost/warranty balance

Rebuilt Engine£8,000–£12,000£9,200–£13,50012–24 monthsLong‑term ownership; 3+ year horizon

Main Dealer New£15,000–£30,000£17,000–£33,00024–36 monthsInsurance jobs, warranty claims; dealer quotes can exceed £30,000

Labour estimate: Fitting an XKR‑S engine typically takes 14–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer). Supercharger removal is required for many repairs.

Common Problems

Weighing Your Options?

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Jaguar XK XKR‑S Repair, Buy, or Replace?

Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.

Jaguar XK XKR‑S Repair, Buy, or Replace?

Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.

Can It Be Repaired?

ProblemRepairable?Typical CostWhen It Makes SenseTiming chain tensioner failure (AJ133)✅ Yes£1,500–£4,000If caught early; regular oil changes prevent recurrenceWater pump failure (AJ133)✅ Yes£500–£1,200Preventative - replace at 30,000–40,000 milesValley coolant pipe leak (AJ133)✅ Yes£500–£1,200Specialist repair; supercharger removal requiredSupercharger snout bearing wear (AJ133)✅ Yes£600–£1,500Specialist rebuild; catch it before the supercharger failsTiming chain slip (AJ133)❌ Usually NoEngine replacementPiston‑valve contact means little is left to repair

Buying This XKR‑S? Check These First

Buy If

Full Jaguar service history with documented oil changes (ideally every 5,000 miles)
Evidence of water pump replacement - this is the number one preventative item
Timing chain tensioners replaced with updated parts
Valley coolant pipes replaced as a preventative measure
A well‑maintained example - the AJ133 is a glorious engine when cared for

Avoid If

Cold‑start rattle with no timing chain history - this is the single most important check
Overheating history with no record of water pump replacement
Coolant loss with no diagnosis - valley pipe risk
Poor service history - the AJ133 is unforgiving of neglect

Closing Verdict

The XKR‑S is Jaguar's ultimate V8 - 550 PS, 186 mph, and a soundtrack to die for. The AJ133 5.0 supercharged V8 is a masterpiece of engineering when it's working, but it has known weak points: water pump failure (often before 35,000 miles), timing chain tensioner failure (which can destroy the engine), and valley coolant pipe leaks. Buy on service history and proof of preventative maintenance. If you're replacing, a reconditioned unit with upgraded water pump and timing chain components is essential.

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Buying Checklist

Before you buy a used Jaguar XKR‑S (or before you commit to an engine replacement), check these:

Cold Start

Listen for rattle on startup (timing chain tensioner warning - the most critical check)

Service History

Including which engine era (AJ133 5.0 SC is the only XKR‑S engine - verify this before purchase) and oil change intervals (5,000 miles is ideal)

Water Pump

Has the water pump been replaced? This is the number one weak point

Coolant Level

Is the coolant low with no visible leak? Valley pipe risk

Supercharger Health

Any whining noise from the front? Snout bearing wear indicator

Overheating History

Any record of overheating? The aluminium block is sensitive to heat

Engine Warning Light

Have codes been read? Any unresolved timing, cooling, or fuelling issues?

MOT History

Check for emissions‑related failures

Buy smart. Drive with confidence.

A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.

Buy smart. Drive with confidence.

A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.

Engine Codes

AJ133 (508PS)

Years2011–2014

Power550 PS (542 bhp) / 680 Nm

2025 Enquiries- (pattern data)

Avg. Recon Cost£6,000–£10,000 [JAG‑QUOTE]

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

AJ133 (508PS)2011–2014550 PS (542 bhp) / 680 Nm- (pattern data)£6,000–£10,000 [JAG‑QUOTE]

Technical Specs

AJ133 508PS

Displacement5,000cc

Cylinders8‑cylinder V (90°)

Compression Ratio9.5:1

Fuel SystemDirect injection

InductionSupercharged (Eaton twin‑vortices) with intercooler

ValvetrainDOHC, 32‑valve, with variable valve timing

Market Intelligence

Most Common Failure

Water pump failure and timing chain tensioner wear

55%

of AJ133 enquiries

[PATTERN DATA]

Average Enquiry Mileage

38,000

miles

[PATTERN DATA]

Average Replacement Cost

£7,500

reconditioned, supply only

[JAG‑QUOTE]

Most Requested Engine Code

AJ133 / 508PS

[JAG‑VERIFIED]

Peak Enquiry Season

Summer

cooling system issues worsen in hot weather

[PATTERN DATA]

Regional Demand

South East22%

London20%

South West15%

PATTERN DATA

Regional Demand Breakdown

22%South East

20%London

Frequently Asked Questions

All prices are indicative UK market ranges based on historical quote data from our network of engine specialists. Actual costs vary by variant, engine code, damage severity and workshop location. Use our free comparison tool to get tailored quotes. Every engine supplied through EnginesMarket carries a minimum 12‑month unlimited‑mileage warranty - always confirm terms with your chosen supplier.

Find the best Jaguar XKR‑S engine replacement UK drivers rely on. Compare prices from trusted specialists on EnginesMarket today and keep Jaguar's ultimate V8 on the road.

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100% Free

No hidden fees

No Obligation

Get quotes with zero pressure

UK Specialists

20+ vetted experts

12-Month Warranty

As standard

Nationwide Delivery

Supply & fit available