Land Range Rover L551 L560 Bare Engine AJ20D4 2.0 MHEV 29k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Land Range Rover L551 L560 Bare Engine AJ20D4 2.0 MHEV 29k miles, WARRANTY is a factory engine block designed for modern Range Rover models with a mild hybrid system. This used, complete block with cylinder head provides a solid foundation for professional engine repair, allowing you to maintain the original operating characteristics and compatibility with the vehicle's factory electronics. It is an ideal solution for workshops and users who want to restore the vehicle's performance in a technically correct and cost-effective manner.

Specifications and technical data

• SKU: LR141368
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR141368
• Substitutable numbers: LR141368, M4D36006FA, M4D3-6006-FA
• Fuel type: Diesel
• Number of cylinders: 4
• Part type: Engine Long Block
• Category: Engines
• Engine code: AJ20D4
• Mileage: 29 000

Purpose and technical specifications

The presented engine block belongs to the Engines category and is dedicated to Land Rover vehicles from the Range Rover L551 and L560 family, equipped with a diesel unit with a mild hybrid system. The four-cylinder, diesel-powered design ensures a modern combination of efficiency, smooth operation, and low fuel consumption, while maintaining the dynamics appropriate for the premium SUV segment.

The unit's code designation allows for precise matching to the specific vehicle configuration, including the installed accessories, engine control unit, and MHEV system. As a result, the block serves as a suitable base for transferring existing accessories from a damaged engine without the need to interfere with factory design solutions.

Application in the MHEV powertrain

The MHEV version of the engine works with a 48V system and components of the energy recovery and drive assistance system. Using the original engine block allows you to maintain:

• proper cooperation with the starter-generator and energy recovery system,
• consistency of control maps in the engine control unit,
• factory torque and power parameters in combination with the mild hybrid system.

For workshops specializing in the Land Rover brand, this is a significant advantage – installing the original block minimizes the risk of adaptation problems, ECU errors, or improper operation of auxiliary systems.

Benefits of using an original used engine block

Choosing a used engine block for a Range Rover is a solution that significantly reduces repair costs while maintaining high quality. The original design ensures:

• preservation of the factory geometry and durability of the block and head,
• the ability to transfer accessories without mechanical modifications,
• better compatibility with factory software compared to aftermarket replacements.

Additionally, the low mileage of the unit translates into less wear on mating components, which is particularly important in modern diesel engines with complex turbocharging systems and advanced emission control.

Professional selection via VIN and OEM

To correctly select a block for a specific Range Rover, it is crucial to verify compatibility using the VIN and part numbers. In workshop practice, this helps avoid assembly problems, differences in accessories, or ECU software incompatibilities. A detailed discussion of selection procedures, differences between versions, and cost calculations can be found in the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which provides valuable support for both mechanics and informed users.

Condition, mileage, and practical application

The unit comes from a vehicle that has been used to a limited extent, which translates into relatively low wear on internal components. Such a block is particularly recommended in situations where:

• mechanical damage to the block or head has occurred in the existing engine,
• a major overhaul of the old unit is not economically justified,
• repair time and the ability to quickly get the car back on the road are priorities.

In the case of a planned vehicle resale, using original used powertrain components can positively influence the perceived value of the car. This topic is discussed in more detail in the article Original used parts and resale value – how not to lose money?, which helps in choosing a repair strategy consistent with the expectations of future buyers.

Integration with other powertrain components

The bare engine block serves as a base for transferring accessories from the previous unit – injectors, turbocharger, manifolds, pumps, and MHEV system components. This approach allows you to:

• maintain configuration consistency with the rest of the vehicle,
• reduce costs by utilizing functional components from the existing setup,
• maintain compliance with factory engine performance parameters.

If you are planning a comprehensive powertrain repair or comparing different solutions within the used engines and gearboxes – facts and selection procedures category, this block provides a technically sound foundation for a professional rebuild of the engine in your Range Rover.