Engine Family
AJ133 / 508PN
Jaguar AJ133 EngineSpecs, Reliability& Replacement Cost
The Jaguar AJ133 is a 5.0-litre V8 petrol - a superb engine let down by early timing-chain issues. Backed by 330+ real UK enquiries in 2025 [JAG-VERIFIED].
330+ Enquiries
5 Models Fitted
58/100 Engine Score
Part of Engine Finders
Jaguar AJ133 / 508PN
Engine Overview
All the essential specifications, performance data, and compatibility information at a glance.
Engine Family
AJ133 / 508PN
Fuel
Petrol
Configuration / Displacement
5.0L V8 NA/SC
Power Range
385–575 bhp
Years Produced
2009–2022
Models Fitted (Jaguar only)
5 (XF, XJ, F‑Type, XK, XFR)
Cross-Brand Fitment
Also fitted to Land Rover
Overall Engine Score
58/100
★★★★☆
Verdict & Rating
Rating:
5
out of 5
90% - based on 330 UK enquiries and cross-referenced specialist rebuild reports.
The AJ133 is a superb V8 when maintained - but early timing-chain tensioners fail without warning before 100k - buy 2013+ or with tensioner history.
Engine Score breakdown:
DimensionScore (of 20)
Reliability
3.5★ × 4
14 /20
Repair Cost
Midpoint of reconditioned range (£7,250) → £7,000–£9,999 bracket
8 /20
Repairability
A mix of cheap fixes (coolant pipes, supercharger coupler) and expensive ones (timing chain)
12 /20
Parts Supply
Well-supported; parts available from multiple UK suppliers
20 /20
Replacement Economics
Reconditioned cost against lowest host value (~£8,000) exceeds 75% threshold
4 /20
Total Engine Score
58 / 100
Best for:
Enthusiasts who value V8 character and can afford preventative maintenance.
Avoid if:
Budget buyers looking at pre-2013 cars with no chain history.
Compatible Jaguar Models
Jaguar AJ133 / 508PN engines are fitted across 5 (XF, XJ, F-Type, XK, XFR) from 2009–2024.
Jaguar Exclusive Engine
This is an exclusive Jaguar engine. No cross-platform sharing.
2009
15 Years of Production
2024XF
Generation
X250Variant/Badge
5.0 V8 NA / SC
Years
2009–2015
XJ
Generation
X351Variant/Badge
5.0 V8 NA / SC
Years
2009–2019
F-Type
Generation
X152Variant/Badge
5.0 V8 SC
Years
2013–2024
XK
Generation
X150Variant/Badge
5.0 V8 NA / SC
Years
2009–2014
XFR
Generation
X250Variant/Badge
5.0 V8 SC
Years
2009–2015
Other Jaguar Models
AJ133 / 508PN also appears in limited variants and markets.
Compatibility Verified
All compatibility data verified from Jaguar parts catalogues and specialist databases. [JAGUAR-VERIFIED]
Also powers the Land Rover Range Rover, Sport and Discovery → [link].
Jaguar AJ133 / 508PNEngine Price Guide
All prices are estimates from UK specialists [JAG-QUOTE]
Fitting an AJ133 typically takes 14–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [JAG-QUOTE].
Parts cost is identical across Jaguar and Land Rover applications; labour time varies slightly by engine bay access.
USED
Supply Only
£3,000–£5,500
[JAG-QUOTE]
Fitted (Indie)
£3,910–£6,670
3–6 months
RECONDITIONED
Supply Only
£5,500–£9,000
[JAG-QUOTE]
Fitted (Indie)
£6,410–£10,170
12 months
REBUILT
Supply Only
£8,000–£12,000
[JAG-QUOTE]
Fitted (Indie)
£8,910–£13,170
12–24 months
Compare Prices from UK specialists
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Jaguar AJ133 / 508PNEngine Price Guide
All prices are estimates from UK specialists
[JAG-QUOTE]
USED
Supply Only
£3,000–£5,500
[JAG-QUOTE]
Fitted (Indie)
£3,910–£6,670
Warranty
3–6 monthsRECONDITIONED
Supply Only
£5,500–£9,000
[JAG-QUOTE]
Fitted (Indie)
£6,410–£10,170
Warranty
12 monthsREBUILT
Supply Only
£8,000–£12,000
[JAG-QUOTE]
Fitted (Indie)
£8,910–£13,170
Warranty
12–24 monthsFitting an AJ133 typically takes 14–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [JAG-QUOTE].
Parts cost is identical across Jaguar and Land Rover applications; labour time varies slightly by engine bay access.
Frequently Asked Questions
Expert answers to the most common Jaguar AJ133 / 508PN engine questions.
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