AJ300 3.0 Petrol Engine
Used & Reconditioned for Sale
300SED, AJ300P.
Displacement
Fuel
Production
SUB — Fits Land Rover Range Rover, Range Rover Sport, Velar, Discovery 5, Defender models — also known as 300SED, AJ300P. Verified fitment by registration, UK delivery. ALSO_KNOWN: Also known as: 300SED, AJ300P. SPEC FIELDS (VERIFIED status only): 3.0L · Petrol · 6 Cylinders · 2019–present · Longitudinal. IMG_ALT: Land Rover AJ300 3.0 litre six-cylinder Ingenium petrol engine.
Displacement
Fuel
Production
Configuration
Applications
Verified Fitment
Checked by registration
12-Month Warranty
On reconditioned units
UK Nationwide Delivery
2-4 working days
14-Day Returns
Uninstalled, full refund
Buy a AJ300 Engine for Your Vehicle
INTRO: We have 1 application group for the AJ300 engine, configured for Land Rover's longitudinal chassis platforms. Each unit is available for order with UK delivery and a full fitment check.
Application availability is being added. Contact us to confirm a compatible engine.
Full AJ300 Compatibility
INTRO: The table below shows every Land Rover model compatible with the AJ300 engine. Each row links to the correct unit page, and you can confirm fitment instantly using our registration checker.
| Model | Chassis | Variants | Years | Config. | Unit page |
|---|---|---|---|---|---|
| Range Rover | L405 (late), L460 | P360, P400 | 2020–present | Longitudinal | Coming soon |
| Range Rover Sport | L494 (late), L461 | P360, P400 | 2020–present | Longitudinal | Coming soon |
| Range Rover Velar | L560 | P340, P400 | 2019–present | Longitudinal | Coming soon |
| Discovery 5 | L462 | P360 | 2020–present | Longitudinal | Coming soon |
| Defender | L663 | P300, P400 | 2020–present | Longitudinal | Coming soon |
Confirm your exact specification with the registration checker above.
AJ300 Engine Prices
INTRO: Our AJ300 engines are priced according to condition and application. Prices are updated regularly to reflect current stock and market conditions.
| Application | Used from | Reconditioned from |
|---|
INTRO: Our AJ300 engines are priced according to condition and application. Prices are updated regularly to reflect current stock and market conditions.
What You Get with a AJ300 Engine
What You Get with a AJ300 Engine
What's included
Not included
Used or reconditioned?
Used AJ300 units are available from UK specialists but supply remains thin given the engine's relative newness; reconditioned units are more commonly selected given the higher vehicle value and the complexity of the MHEV system. The AJ300/300SED is JLR's current-generation 3.0-litre straight-six petrol engine, introduced in 2019 as part of the Ingenium family with 48V mild-hybrid technology. It is fitted across the Range Rover, Range Rover Sport, Velar, Discovery 5, and Defender ranges. As these vehicles age out of warranty, replacement demand for complete units is emerging — particularly for higher-mileage examples where the complex twincharged (turbo + electric supercharger) induction system may require specialist attention.
AJ300 Engine Buying FAQs
Answers to common fitment, condition, warranty and delivery questions.
Check AJ300 Fitment for Your Vehicle
CTA_H2: Check AJ300 Fitment Today CTA_P: Enter your registration for an instant compatibility check. If we have stock, you can buy at our fixed, transparent price. CTA_BUTTON: "Check Fitment by Reg