Jaguar Engine Specialists
JAGUAR AJ300P ENGINEREBUILD & REPLACEMENT
Specialist Jaguar AJ300P engine rebuilds and replacements, fitted across the F-Pace P400. Nationwide recovery, registration-based engine matching, 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
Fitted Across the F-Pace P400
Starting from
£3,200
Jaguar AJ300P Engine Specifications
Engine Code
AJ300P
Manufacturer
Jaguar Land Rover (Ingenium family)
Configuration
Inline-6 (I6)
Capacity
3.0L (2,995 cc)
Fuel
Petrol MHEV
Production Years
2019-present
Used In
1 Jaguar model
Jaguar AJ300P Engine Rebuild Price
Starting From
£3,200
The AJ300P sits on the 6-cylinder petrol rebuild tier. Exact price depends on condition and parts required - submit your reg for a fixed-price quote.
Get Your Fixed-Price Quote →
Jaguar AJ300P Applications - Every Model & Variant
Not seeing your exact model?
Send us your registration and we'll confirm.
Jaguar AJ300P Rebuild Components
Replaced as Standard
- Main bearings and connecting rod bearings
- Complete gasket and seal set
- Timing chain components where required
- Oil filter housing gasket
Inspected and Measured
- Crankshaft
- Cylinder head
- Timing chain tensioners and guides
- Twin-scroll turbocharger
Inspected and Measured
- 48V MHEV system components
- Fuel injectors
- PCV system
Application-Dependent
- 48V MHEV system components
Components drawn directly from Master Engine Data File. If your AJ300P's exact ancillary set isn't covered above, we confirm the full scope once your engine is inspected - not guessed in advance.
OUR WORKSHOP
01RECOVERY COLLECTION
02STRIPPED AJ300P BLOCK
03INTERNAL ENGINE WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & READY FOR REFIT
Real photos from our workshop - not stock imagery.
JAGUAR AJ300P ENGINE REBUILD PROCESS
WE COVER YOUREXACT VEHICLE
WHY CHOOSE US FOR JAGUAR AJ300P REBUILDS
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
No widely-reported pattern is confirmed for the AJ300P - we still recommend a full inspection before any long journey
OUR MOST RECENTJAGUAR 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 F-Pace
RECOVERY
Jaguar F-Pace
DIAGNOSTICS
Jaguar F-Pace
STRIPPED ENGINE
Jaguar F-Pace
TIMING CHAIN REPLACEMENT
Jaguar F-Pace
IN FOR REBUILD
Jaguar F-Pace
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most cars 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.
ABOUT THE
JAGUAR AJ300P ENGINE
The AJ300P is Jaguar Land Rover's Ingenium-family turbocharged 3.0-litre inline-six petrol engine, introduced in 2019. In the Jaguar range, its primary application is the F-Pace P400, where it's paired with a 48V mild-hybrid system.
JAGUAR AJ300P
APPLICATIONS BY MODEL
Across the F-Pace, the AJ300P is the top-spec petrol powertrain in the P400 variant (X761, 2019-present), producing 400 hp with mild-hybrid assistance.
JAGUAR AJ300P
ENGINE COMPATIBILITY
Because the AJ300P is paired with a 48V MHEV system, compatibility depends on matching the exact vehicle specification. The engine and its associated ancillaries - including the mild-hybrid components - are specific to the F-Pace P400 application. Before we quote or supply anything, we confirm your exact vehicle by registration or VIN.
MODEL
Confirm your exact model and variant.
GENERATION
Identify the correct generation (X761).
DRIVETRAIN
Drivetrain and ancillary specification.
CONFIRMED BY REGISTRATION
We confirm by registration/VIN before quoting or supplying anything.
Jaguar AJ300P
Applications We Work On
AJ300P in the F-Pace (X761, 2019-present)
The AJ300P in the F-Pace P400 is one of the applications we work on. The 3.0-litre Ingenium straight-six is matched with a 48V mild-hybrid system to produce 400 hp. Jaguar AJ300P by Powertrain Variant AJ300P MHEV Applications: F-Pace P400. The mild-hybrid system carries additional 48V ancillaries we account for during a rebuild.
Starting from:
£3,200
MODEL
Jaguar F-Pace X761
ENGINE
AJ300P 3.0L
YEAR
2019 - present
STARTING FROM
£3,200
Not seeing your exact model above? Send us your registration and we'll confirm your exact spec.
OUR WORKSHOP VIEW OF
THE JAGUAR AJ300P
Built, rebuilt and tested by engineers who work on Jaguar engines every day.
Here's our practical view of the AJ300P across its F-Pace X761 application.
APPLICATIONS WE SEE:
The AJ300P is fitted in the F-Pace P400.
WHAT WE REPLACE:
Main bearings, connecting rod bearings, gaskets and seals, timing chain components where required, and the oil filter housing gasket as standard on every rebuild. 48V MHEV ancillaries are also accounted for on this application.
KNOWN ISSUES:
No widely-reported pattern is confirmed for the AJ300P. We don't treat this engine as having one universal failure mode; diagnosis is required to establish whether an engine needs repair, rebuild or replacement.
AJ300P REBUILD INFORMATION
Typical rebuild scope:
A TYPICAL
JAGUAR AJ300P REBUILD
The following describes a typical rebuild scope for this engine - illustrative of the work involved, not a specific customer job. Real case studies from our own completed work will replace this section once available.
01INSPECTION & STRIP-DOWN
Careful inspection of the crankshaft, cylinder head, and timing chain components during strip-down.
02COMPONENT REPLACEMENT
Main bearings, connecting rod bearings, gaskets, seals, and timing chain components replaced as required.
03QUALITY CHECKS
All major rotating assemblies, oil pump, and cooling system components inspected for long-term reliability.
Typical Scope:
Main bearings, connecting rod bearings, gaskets and seals, timing chain components where required, and the oil filter housing gasket as standard on every rebuild. 48V MHEV ancillaries are also accounted for on this application.
Starting From:
£3,200
Jaguar AJ300P
ENGINE REBUILD COST
A Jaguar AJ300P engine rebuild starts from £3,200.
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.
Starting From
£3,200
Get a fixed-price quote within 30 minutes.
MODEL
Jaguar F-Pace X761
ENGINE
AJ300P 3.0L
YEAR
2019 - present
STARTING FROM
£3,200
JAGUAR AJ300P REBUILD VS REPLACEMENT VS USED
Rebuilding Your AJ300P Engine
Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your Jaguar already has instead - strip it down, pressure-test it, and replace every worn or damaged component 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 F-Pace owners choose, and it's the one we'd recommend for most situations.
- Strip down & inspect
- Pressure-test
- Replace worn components
- 12-month unlimited-mileage warranty
Replacement AJ300P 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 unlimited-mileage warranty.
- Supplied & fitted by our team
- OEM quality
- 12-month unlimited-mileage warranty
Used AJ300P 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.
- Low-mileage units
- Quick turnaround
- Condition risk - we advise honestly
Enter your registration and we’ll talk you through both options honestly.
Reconditioned, Refurbished or Remanufactured?
JAGUAR AJ300P RECONDITIONED 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.
→ Our rebuild service is exactly that.
JAGUAR AJ300P REFURBISHED ENGINES
"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.
→ Our rebuild service covers this.
JAGUAR AJ300P REMANUFACTURED 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, regardless of which AJ300P-equipped model you drive.
→ That’s consistent with what our rebuild service delivers.
FREQUENTLY ASKED QUESTIONS
GET YOUR FREE
JAGUAR AJ300PFIXED-PRICE QUOTE
FIXED PRICE
Transparent quotes with no hidden extras.
12-MONTH WARRANTY
Unlimited mileage for total peace of mind.
QUICK RESPONSE
Most quotes returned within 30 minutes during working hours.
