Jaguar FType P450 Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Jaguar F-Type P450 engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most reliable and cost-effective replacement for your high-performance sports car.
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12-Month Warranty
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From £7,500 to £10,500
Used from £3,000 · Reconditioned from £5,500 · Common codes: AJ30
From £3,000
Tested, bare/short engine
From £5,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

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3 Simple Steps3 Simple Stepsto Finding the Best Jaguar F-Type P450 Replacement Engineto Finding the Best Jaguar F-Type P450 Replacement Engine
Most replacements completed within 3-5 days.
Jaguar F-Type P450 - Engine History & Specs at a Glance
When the Jaguar F-Type P450 launched in 2020 as part of the model's major facelift, it replaced the lower-output V8 options with a refined 450hp iteration of Jaguar’s legendary 5.0L supercharged V8, balancing explosive performance with improved daily drivability.

Jaguar F-Type P450 - Engine History & Specs at a Glance
When the Jaguar F-Type P450 launched in 2020 as part of the model's major facelift, it replaced the lower-output V8 options with a refined 450hp iteration of Jaguar’s legendary 5.0L supercharged V8, balancing explosive performance with improved daily drivability.
Jaguar F-Type P450
Engine History Timeline
AJ30 5.0L Supercharged V8 introduced (450hp) featuring revised engine management software, updated supercharger calibration, and refined thermal management for the P450 trim.
2024 - Continued as the core V8 offering alongside the higher-output SVR with minor software refinements to the variable valve timing and active exhaust systems, culminating in special editions like the 75 Edition.
Key Specs Snapshot
Every engine fitted to the Jaguar F-Type P450 is covered below, with UK rebuilt pricing and known failure points.
Jaguar F-Type P450 Engine Codes - Specifications & Replacement CostJaguar F-Type P450 Engine Codes - Specifications & Replacement Cost
5.0L Supercharged Petrol (2020-2024)
Compatible Trim Levels
- P450
- P450 R-Dynamic
- P450 First Edition
- P450 75 Edition

Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£3,000-£5,500 [ESTIMATED - using AJ133 as proxy]
Reconditioned
Addressed known issues, tested
£5,500-£9,000 [ESTIMATED - using AJ133 as proxy]
Rebuilt
Full teardown, upgraded internals
£7,500-£10,500 [ESTIMATED - using AJ133 as proxy, aligned with F-Type P450 market data]
Common Failure
Variable valve timing phaser rattle at idle and supercharger coupler degradation under high boost cycles, typically observed between 40,000-80,000 miles.


The Jaguar F-Type P450 reliability landscape is defined by its AJ30 5.0L supercharged V8 architecture. While generally robust and an improvement over earlier iterations, it shares known weak points with the broader AJ133 family. Rebuilt engines supplied through EnginesMarket include upgraded internal components designed to permanently address these original failure points, backed by a minimum 12-month unlimited mileage warranty.

Why the Jaguar F-Type P450 AJ30 Wears Prematurely
Affected Vehicles
Jaguar F-Type P450 (AJ30, 2020-2024)
Typical Failure Mileage
40,000 - 80,000 miles
Root Cause
The factory rubber isolator spring between the Eaton supercharger drive pulley and rotor pack fatigues, while VVT phasers develop play, causing a distinct metallic rattle on cold starts or under load.
Why It Happens
The factory rubber isolator spring between the Eaton supercharger drive pulley and rotor pack fatigues, while VVT phasers develop play, causing a distinct metallic rattle on cold starts or under load.
Dealer (parts + labour)
£2,000-£2,800
Specialist (parts + labour)
£1,200-£1,800
What it involves
Remove supercharger, replace fractured isolator with machined aluminium coupler, and update VVT phasers.
Suitability
Highly effective if caught early before rotor scoring or timing faults occur.
Dealer (parts + labour)
£12,000-£16,000
Specialist (parts + labour)
£7,500-£10,500
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
Recommended once metallic grinding is audible or timing faults have caused secondary damage.
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
Minor - Preventative Coupler & Phaser Upgrade Minor | £2,000-£2,800 | £1,200-£1,800 | Remove supercharger, replace fractured isolator with machined aluminium coupler, and update VVT phasers. | Highly effective if caught early before rotor scoring or timing faults occur. | |
Full Replacement - rebuilt/reconditioned engine Best Value | £12,000-£16,000 | £7,500-£10,500 | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | Recommended once metallic grinding is audible or timing faults have caused secondary damage. |
Our Recommendation
Our Recommendation
If your Jaguar F-Type P450 is exhibiting early cold-start rattle but runs smoothly otherwise, a specialist supercharger coupler and phaser upgrade is the most cost-effective first step. However, if you are experiencing metallic grinding, persistent misfires, or timing faults, a full rebuilt engine with upgraded internals is the only reliable long-term solution to protect your investment.

Don't Let Engine Failure Write Off Your Jaguar F-Type P450
Whether you are dealing with supercharger coupler rattle, VVT phaser wear, or inlet manifold flap failure on your Jaguar F-Type P450, the financial decision between repeated dealership diagnostics and a complete engine replacement is straightforward. EnginesMarket connects you with trusted UK specialists who supply fully rebuilt engines featuring upgraded internal components that permanently address the original design flaws. Every unit comes with a minimum 12-month unlimited mileage warranty, nationwide delivery, and optional supply & fit packages, allowing you to bypass main dealer markups and return to the road with confidence.
Important Information
Important Information
All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Jaguar F-Type P450. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Jaguar F-Type P450 Engine ReplacementFrequently Asked Questions
Question 1How much does a Jaguar F-Type P450 engine replacement cost-
A rebuilt Jaguar F-Type P450 engine typically costs between £7,500 and £10,500 for supply only, while a reconditioned unit ranges from £5,500 to £9,000.
- Rebuilt units include upgraded supercharger couplers and timing components to prevent future failures.
- Supply and fit packages typically add £1,200-£2,500 in labour and ECU coding.
Question 2What are the signs of AJ30 engine failure in a Jaguar F-Type P450-
The most common early warning signs are a distinct metallic rattling noise on cold startup from the supercharger area and persistent misfire codes.
- Advanced failure may present as loss of power, rough idle, or an illuminated check engine light for VVT faults.
Question 3Is it worth replacing the engine in a Jaguar F-Type P450-
Yes, replacing the engine is highly recommended for the F-Type P450, as the vehicle's current market value (£45,000-£65,000) comfortably absorbs the replacement cost.
- A rebuilt engine restores the 450hp performance and reliability that defines the P450 trim.
- Opting for a unit with upgraded internal components ensures long-term durability and protects your investment.
Question 4Do I need to reprogram the ECU after replacing my Jaguar F-Type P450 engine-
Yes, Jaguar F-Type P450 engine replacement requires Topix diagnostic programming to pair the new ECU with the engine immobiliser and calibration data.
- Skipping this step risks limp mode, no-start conditions, or persistent fault codes post-installation.
- Specialist workshops with Jaguar diagnostic equipment handle this process routinely.
Question 5How long does a Jaguar F-Type P450 engine replacement take-
A professional supply and fit service for a Jaguar F-Type P450 typically takes 3 to 5 working days.
- This includes the physical engine swap, fluid replacement, and mandatory Topix ECU coding and supercharger calibration.
- Nationwide mobile fitting or collection services are available through our vetted specialist network.
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