The Land Rover 508PN is the naturally aspirated version of Jaguar Land Rover’s (JLR) renowned AJ133 5.0-liter V8 engine family. In JLR’s internal coding system, designations ending in “PN” typically represent large-displacement naturally aspirated gasoline engines (Petrol Naturally Aspirated), while “PS” denotes supercharged engines (Supercharged). This engine series was developed entirely in-house by Jaguar Land Rover and introduced around 2009 to fully replace the earlier BMW M62/Jaguar AJ34 4.4L V8 engines. Technical Features and Configuration: The engine features a lightweight all-aluminum block and cylinder head, a 90-degree V-8 configuration, and is equipped with direct injection (SGDI) technology, dual independent variable camshaft timing (DIVCT), and a 4-valve-per-cylinder design. Compared to the 508PS supercharged version, the 508PN has a higher compression ratio (11.5:1) and delivers extremely linear and smooth power output.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Technical Specifications:
Engine Code: 508PN / AJ133 (Naturally Aspirated)
Engine Family: JLR AJ-V8 Gen III
Displacement: “4,999 cc (5.0 L)”
Cylinder Configuration: 90° V-8 (V8)
Bore × Stroke: 92.5 mm × 93.0 mm
Compression Ratio: 11.5 : 1
Maximum Power Output: “276 kW – 283 kW (375 PS – 385 PS) @ 6,500 RPM”
Peak Torque: “510 N·m – 515 N·m @ 3,500 RPM”
Intake Configuration: Naturally Aspirated
Valve and Fuel Delivery System: “DOHC, 32V, DIVCT, Direct Injection”
Fitment / Compatibility:
Land Rover Discovery 4 (L319) [5.0 V8 Gasoline] (2009–2013)
Range Rover 3rd Generation (L322) [5.0 V8 Naturally Aspirated] (2009–2012)
Range Rover Sport 1st Generation (L320) [5.0 V8 Naturally Aspirated] (2009–2013) (This engine is also compatible with certain Jaguar XJ / XF 5.0L naturally aspirated models from the same era)
OE Part Numbers:
Engine Long Block: LR012899, LR038150, LR051486, LR079145
Short Block: LR012901
Engine Service Code: 508PN, AJ133
These references should not be assumed to apply to every 508PN engine or vehicle. The applicable OE reference should be verified through the original engine identification,
vehicle VIN, and an authoritative parts catalog.
Please provide the original engine code, vehicle details, and available reference number so the relevant application can be checked before quotation.
The remanufacturing process should be determined by the condition of the core engine and the agreed build specification.
A professional workflow may include:
Engine identification and initial inspection.
Disassembly and cleaning of reusable components.
Inspection of the cylinder block and cylinder heads.
Measurement of critical engine dimensions against applicable specifications.
Inspection of the crankshaft, pistons, connecting rods, and bearing surfaces.
Replacement of components that fail inspection or fall outside the required tolerances.
Assembly according to the applicable technical procedures.
Final inspection and preparation of available quality documentation.
The actual machining work, component replacement, testing procedures,
and build specification should be confirmed with the supplier before purchase.
We support professional automotive parts buyers who require clear product identification, fitment verification, and reliable order communication.
Our B2B service can support:
Engine identification before ordering
Product photographs and specification confirmation
Written quotations and supply configuration
Wholesale and bulk purchase enquiries
Export packing coordination
Communication with your nominated freight forwarder
Available product and quality documentation
Stock availability, minimum order quantity, lead time, warranty terms, payment conditions,
and shipping arrangements should be confirmed in the quotation.
Packaging should be selected according to the engine weight, transport method, destination, and handling requirements.
Before dispatch, buyers should confirm the delivery address, nominated freight forwarder, package dimensions, gross weight, packing requirements,
shipping marks, and export customs responsibilities.
Commercial invoices, packing lists, product identification details, and available quality documents can be discussed during order preparation.
Any certificates or declarations are subject to availability and applicable requirements.
Q1: What is the Land Rover 508PN engine?
The 508PN is a 5.0-liter naturally aspirated V8 petrol engine in the Jaguar Land Rover AJ133 family.
Q2: Is the 508PN the same as the 508PS?
No. The 508PN is naturally aspirated, while the 508PS is supercharged. They should not be treated as universally interchangeable.
Q3: Which vehicles use the 508PN engine?
Selected applications include Land Rover Discovery 4, Range Rover, and Range Rover Sport models, as well as certain
Jaguar XF, XJ, and XK applications. Exact fitment depends on the engine code, vehicle year, and configuration.
Q4: Does the long block include the supercharger or other accessories?
The 508PN is naturally aspirated and does not use the 508PS mechanical supercharger.
Other accessories and fuel system components are not automatically included with a long block. Please request a written component list.
Q5: Can you confirm the correct OE number?
Please provide the original engine identification, VIN, vehicle model year, and available reference number.
These details are needed to verify the correct application.
Q6: Can you supply engines to overseas wholesale buyers?
Please contact us with the destination country, required engine version, quantity, and shipping arrangements.
We can review the requested specification and provide a quotation based on the available supply.
Looking for a Land Rover 508PN AJ133 5.0L V8 naturally aspirated petrol engine long block for your business?
Send us the original engine code, vehicle VIN, production year, required quantity, and destination country. Our sales team can review the application requirements and prepare a quotation based on the requested specification and available supply.
Contact us for engine fitment verification, wholesale pricing, product details, and export supply arrangements.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
