The Defender P400e is a plug-in hybrid variant of the L663-generation Defender, introduced in 2020. It combines the Ingenium AJ300P — a 3.0-litre inline-six petrol engine — with an electric motor, producing a combined output of 404 PS. Production was limited to the 2020 model year and the 110 body style only, making it a relatively rare variant in the Defender range. The Defender P400e is no longer in production, but we continue to rebuild and replace engines for every one still on the road. Defender P400e Engine Codes AJ300P + Electric Motor (L663, 2020 only) A 3.0-litre inline-six petrol engine paired with a plug-in hybrid electric motor, fitted exclusively to the L663-generation Defender 110 in 2020. We rebuild the internal combustion engine component to the same standard as our other Defender petrol rebuilds, with timing chains, bearings and gaskets replaced as standard. Check Your Defender P400e → [link to quote form] Defender P400e Engine Compatibility The P400e is a distinct PHEV variant that was only produced for the 2020 model year and exclusively in the 110 body style. Unlike the standard P400, the P400e features a plug-in hybrid drivetrain with additional electrical components. Before we quote or supply anything, we confirm: Your exact vehicle specification via registration or VIN That your vehicle is a 2020 110 P400e (the only configuration this variant was offered in) Any PHEV-specific components relevant to your rebuild 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 vehicle. Defender P400e Applications by Generation Generation Chassis Years Engine Code Fuel L663 110 2020 only AJ300P + electric motor Petrol Plug-in Hybrid Land Rover Defender P400e Engines by Year Year Generation Engine Code Fuel Service 2020 L663 110 AJ300P + electric motor Petrol Plug-in Hybrid Rebuild / Replacement We Cover Every Land Rover Defender P400e Model Year: ✓ Land Rover Defender P400e 2020 Engine Rebuild If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg. Land Rover Defender P400e Engine Sizes ✓ Land Rover Defender P400e 3.0 Litre Engine (AJ300P + electric motor) Land Rover Defender P400e Fuel Types ✓ Land Rover Defender P400e Petrol Plug-in Hybrid Engine Rebuilds Land Rover Defender P400e Engine Costs A Land Rover Defender P400e 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. Related Land Rover Defender Variants Looking for a different Defender engine? We also cover: [Defender D200 Engine →] · [Defender D250 Engine →] · [Defender D300 Engine →] · [Defender P300 Engine →] · [Defender P400 Engine →] · [Defender Octa Engine →] [← View All Land Rover Defender Engines] Frequently Asked Questions What engine does the Land Rover Defender P400e use? The Defender P400e uses the Ingenium AJ300P — a 3.0-litre inline-six petrol engine — paired with an electric motor in a plug-in hybrid configuration. It was produced exclusively for the 2020 model year in the 110 body style. How much does a Land Rover Defender P400e engine rebuild cost? Rebuilds start from £2,800. Exact price depends on condition and parts required — submit your reg for a fixed-price quote. Which engine code is fitted to my Defender P400e? Enter your registration on this page and we'll confirm your exact specification before you're quoted anything. Do you rebuild AJ300P Defender P400e engines? Yes. We replace timing chains, bearings and gaskets as standard on every Defender P400e petrol engine rebuild. Do you supply used Defender P400e engines? Yes, in some cases a matched low-mileage used engine is the right option. Our team will advise honestly once we've matched your registration and understood your situation. Can you recover my Defender P400e if the engine has failed? Yes — nationwide recovery is available from £70, and most vehicles are collected within a few hours of booking. How long does a Defender P400e engine rebuild take? Most rebuilds are completed within 3-5 working days from the time your vehicle arrives at our workshop. Is rebuilding better than fitting a used engine? For most Defender P400e owners, yes. A rebuild removes the compatibility risk that comes with an unknown used unit's history, and comes with a 12-month unlimited-mileage warranty — often longer and more comprehensive than what a used engine supplier offers. <a name="quote-form"></a> Get Your Free Land Rover Defender P400e Fixed-Price Quote [Quote Form: Registration Number | Postcode | Name | Phone | Email | Issue/Enquiry Type (dropdown: Engine Failure / Replacement Needed / General Enquiry) | Submit] Most quotes returned within 30 minutes during working hours. json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://landrovergarage.co.uk#organization", "name": "Land Rover Garage", "url": "https://landrovergarage.co.uk", "email": "info@landrovergarage.co.uk", "telephone": "+44 01268 944 234", "sameAs": [ "https://facebook.com/landroverrebuildgarageuk", "https://twitter.com/landroverrebuildgarageuk", "https://instagram.com/landroverrebuildgarageuk", "https://tiktok.com/@landroverrebuildgarageuk" ] }, { "@type": "AutoRepair", "@id": "https://landrovergarage.co.uk#autorepair", "name": "Land Rover Garage – Defender P400e Engine Rebuild Specialists", "url": "https://landrovergarage.co.uk/defender-p400e-engines", "telephone": "+44 01268 944 234", "email": "info@landrovergarage.co.uk", "priceRange": "£££", "address": { "@type": "PostalAddress", "streetAddress": "Unit A5 Windsor Road, Commercial Estate, Ramsden Heath", "addressLocality": "Billericay", "postalCode": "CM11 1QE", "addressCountry": "GB" }, "openingHours": "Mo-Fr 09:00-18:00, Sa 11:00-14:00", "areaServed": "GB", "parentOrganization": { "@id": "https://landrovergarage.co.uk#organization" }, "brand": { "@type": "Brand", "name": "Land Rover" } }, { "@type": "Service", "serviceType": "Land Rover Defender P400e Engine Rebuild & Replacement", "provider": { "@type": "AutoRepair", "name": "Land Rover Garage" }, "areaServed": "GB", "offers": { "@type": "Offer", "priceCurrency": "GBP", "price": "2800", "description": "Land Rover Defender P400e engine rebuild starting price, AJ300P" } }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What engine does the Land Rover Defender P400e use?", "acceptedAnswer": { "@type": "Answer", "text": "The Defender P400e uses the Ingenium AJ300P — a 3.0-litre inline-six petrol engine — paired with an electric motor in a plug-in hybrid configuration. 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We continue to rebuild and replace AJ300P + electric motor engines for every Defender P400e on the road.