
Range Rover Sport D300 Engine Rebuild - From £2,800
Specialist Range Rover Sport D300 engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty
Rated Land Rover 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
Ingenium AJ300D Specialists
Your Range Rover Sport D300 Engine

Vehicle
Range Rover Sport D300
Model
Range Rover Sport
Variant
Range Rover Sport D300
Fuel
Diesel MHEV
Engine
AJ300D
Capacity
3.0L I6
Generations
L461 (2022-present)
Rebuild From
£2,800
Not sure which engine you have?
The Range Rover Sport D300 uses the AJ300D 3.0-litre inline-six mild-hybrid engine - enter your registration below and we'll confirm your exact spec before you get a quote.
DVLA & VIN verified
100% secure & private
No obligation quote
Range Rover Sport D300 Engine Rebuild Price
Starting From £2,800

Engine Code
AJ300DRebuild From
£2,800

Generation
L461 (2022-present)
Exact price depends on condition and parts required - submit your reg for a fixed-price quote.
Range Rover Sport D300 Known Issues by Engine
If your Range Rover Sport D300 has the AJ300D (L663 generation):
Timing chain wear - Ingenium diesel engines share a well-documented timing chain pattern. We replace timing chains, guides and tensioners as standard on every AJ300D rebuild.
Source: established specialist consensus, l663.guide specialist buying guide, what-breaks.com. This applies to L663 Defenders only - not to classic Defender models

Range Rover Sport D300 ENGINE OPTIONS
Every Range Rover Sport D300 is different. That's why we offer the right solution for your engine, your car and your budget.
NOT SURE WHICH OPTION IS RIGHT FOR YOU?
Enter your registration below and we'll confirm your AJ300D and talk you through the best solution for your Range Rover Sport D300, honestly.
Ask About Your OptionsOUR WORKSHOP
01RECOVERY COLLECTION

02AJ300D ENGINE STRIPPED FOR REBUILD INSPECTION

03VALVE COVERS & COOLANT COMPONENT WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & READY FOR REFIT
Real photos from our workshop - not stock imagery. This is what a genuine Range Rover Sport D300 rebuild looks like.
Range Rover Sport D300 ENGINE REBUILD PROCESS
WE COVER YOUR EXACT VEHICLE
Enter your registration below and we'll confirm your Range Rover Sport D300 has the AJ300D, along with an exact rebuild price.
WHY LAND ROVER Range Rover Sport D300 OWNERS CHOOSE US
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
OUR MOST RECENT LAND ROVER 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.

Range Rover Sport D300
RECOVERY

Range Rover Sport D300
DIAGNOSTICS

Range Rover Sport D300
STRIPPED ENGINE

Range Rover Sport D300
TIMING CHAIN REPLACEMENT

Range Rover Sport D300
IN FOR REBUILD

Range Rover Sport D300
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most Defender models 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.
LOOKING FOR A USED OR REPLACEMENT ENGINE INSTEAD?
We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most Range Rover Sport owners choose a rebuild once they realise it removes compatibility risk and works out more cost-effective over the life of the car. Enter your reg below and we'll show you every option, honestly.
ABOUT THE Range Rover Sport D300 ENGINE

The Range Rover Sport D300 is a current-generation model, introduced in 2022 with the L461 chassis. It uses the AJ300D - a 3.0-litre inline-six diesel with mild-hybrid (MHEV) assistance. This is an Ingenium-family diesel, sharing its architecture with the D300 and D350 found in the L460 Range Rover, as well as the D250/D300/D350 in the L663 Defender. The D300 sits in the middle of the diesel range for the L461 Sport, offering a strong balance of power and efficiency. The D300 is the most commonly requested diesel variant in the current Sport lineup.
We continue to rebuild and replace AJ300D engines for every Range Rover Sport D300 on the road.
Range Rover Sport D300 ENGINE CODES

AJ300D (L461)
A 3.0-litre inline-six diesel with mild-hybrid assistance, fitted to the Range Rover Sport D300 from 2022 to present. No widely-reported engine issue confirmed for this variant specifically - the AJ300D is an improved design over earlier Land Rover diesel engines and does not share the well-documented timing chain pattern of the older TDV6/SDV6 family.
Check Your AJ300D Range Rover Sport D300Range Rover Sport D300 ENGINE COMPATIBILITY

The D300 sits alongside the D350 (higher-output diesel), P400 (petrol MHEV), P530/P635 (BMW-sourced V8s) and P440e/P460e (plug-in hybrids) in the L461 Sport range. The AJ300D is the only 3.0-litre diesel MHEV option currently available. Before we quote or supply anything, we confirm:
Your exact engine code (AJ300D) via registration or VIN
Your generation (L663)
Drivetrain and ancillary specification
Whether your build falls in the early production period (2019-2020) for injector fault coverage
This is why we always start with your registration rather than a generic Defender quote - it protects you from paying for parts that don't fit your actual car.
Range Rover Sport D300 APPLICATIONS BY GENERATION
Range Rover Sport D300 ENGINES BY YEAR
Range Rover Sport D300 has used the AJ300D throughout. If you're unsure of your exact spec, we'll confirm it before you book.
The AJ300D has been fitted to every Range Rover Sport D300 since launch - if your registration year isn't listed above, get in touch and we'll confirm availability directly against your reg.
WE COVER EVERY Range Rover Sport D300 MODEL YEAR:
Range Rover Sport D300
2022 Engine Rebuild
Range Rover Sport D300
2023 Engine Rebuild
Range Rover Sport D300
2024 Engine Rebuild
Range Rover Sport D300
2025 Engine Rebuild
Range Rover Sport D300
2026 Engine Rebuild
If your registration year or model isn't listed above, get in touch - we'll confirm availability directly against your reg.
Range Rover Sport D300 ENGINE COSTS
A Range Rover Sport D300 engine rebuild starts from
£2,800
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.

12 MONTH
UNLIMITED-MILEAGE
WARRANTY
LAND ROVER Range Rover Sport D300 ENGINE SIZES
• Range Rover Sport D300 3.0 Litre Engine (AJ300D, I6)
LAND ROVER Range Rover Sport D300 FUEL TYPES
• Range Rover Sport D300 Petrol Mild Hybrid Engine Rebuilds
Related Range Rover Sport Variants
Most Range Rover Sport D300 engine rebuilds are completed within 3-5 working days.
Nationwide recovery and collection available for all Range Rover Sport D300 models.












