Jaguar XK8 X100 XK X150 Complete Engine 4.2 V8 AJ8FT 298HP 89k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty. The warranty covers the engine itself; engine accessories are covered by a 30-day warranty. The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine. The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification. Jaguar XK8 X100 XK X150 Complete Engine 4.2 V8 AJ8FT 298HP 89k miles, WARRANTY is a complete powertrain from the AJ-V8 family, designed for Jaguar XK models of the X100 and X150 generations. This used, petrol engine with an eight-cylinder configuration provides the characteristic Jaguar refinement, smooth power delivery, and solid torque reserves, ideal for GT-class vehicles. It is the perfect solution for users who want to restore the full performance of their powertrain while maintaining factory operating characteristics and compatibility with the original installation.

Specifications and technical data

• SKU: AJ83784N-1
• Mark: Jaguar
• Condition: Used
• OEM Part Number: AJ83784N
• Substitutable numbers: AJ83784N, 3W836006AA, 3W83-6006-AA
• Fuel type: Petrol
• Number of cylinders: 8
• Part type: Complete Assembly
• Category: Engines
• Engine code: AJ8FT
• Mileage: 89 000

Technical characteristics of the 4.2 V8 unit

The engine from the AJ8FT family is a petrol, V8 unit that combines high refinement with dynamic power delivery. Eight cylinders ensure even torque development, stable operation across the entire rev range, and the deep, characteristic sound typical of Jaguar. The design of this unit was developed with grand tourer class cars in mind, where both flexibility and long-distance driving comfort are paramount. The engine is adapted for petrol fuel, which allows for high power output while maintaining proper throttle response. The V8 configuration promotes smooth operation at low revs, and at higher engine speeds, it enables dynamic acceleration, which is essential for overtaking and highway driving.

Application in Jaguar XK models

The presented powertrain is intended for Jaguar XK8 X100 and XK X150 generation cars. This is a solution for users who want to maintain the original vehicle specification, avoiding issues with fitting accessories, wiring harnesses, or control units. Using the correct engine code facilitates integration with the factory electronics, cooling system, and exhaust system. In practice, this means the possibility of replacing the powertrain in an orderly manner, while maintaining factory mounting points and the geometry of the installation as intended by the manufacturer. This minimizes the risk of additional mechanical and electrical modifications.

Benefits of choosing a complete used engine

Choosing a complete engine from the Engines category allows you to reduce the time and scope of workshop work compared to a major repair of a damaged unit. Instead of extensive refurbishment, you can use a complete powertrain, which facilitates cost planning and reduces vehicle downtime. A used unit with a verified mileage is a reasonable compromise between price and functionality, especially in premium-class cars where new components are significantly more expensive. The eight-cylinder engine provides:

• smooth power delivery across a wide rev range,
• stable operation at idle and under load,
• the characteristic, powerful V8 sound, highly valued in Jaguar XK models. An additional advantage is the preservation of the original operating characteristics of the unit, which is important both for driving comfort and for the future resale value of the vehicle.

Selection by OEM and VIN, and operational aspects

To correctly match this engine to a specific Jaguar, it is crucial to verify compatibility using the OEM number and the vehicle's VIN. This allows you to avoid problems with the compatibility of accessories, the engine control unit, or the electrical installation. Proper selection of the powertrain reduces the risk of additional costs associated with the adaptation or replacement of accompanying elements. The engine's mileage is an important parameter when planning further operation – it allows you to assess the potential service life and plan any necessary maintenance after installation. In the case of V8 engines used in Jaguars, regular maintenance and proper installation are of key importance for maintaining stable operation and appropriate durability. If you want to better understand how to safely and consciously invest in used powertrains, it is worth reading the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, selection by VIN/OEM and the cost ratios of repairs versus replacement.

Support for powertrain expansion

If you are planning a comprehensive repair or upgrade of the engine area in your Jaguar and need other components from the same group, such as blocks, cylinder heads, or complete powertrains, check out the available parts in the Jaguar Engines category.