Land Rover Discovery 3 L319 Door Wire Harness Rear Left N/S YMM502591B YMM502591

Land Rover Discovery 3 L319 Door Wire Harness Rear Left is an original electrical installation component designed for the rear left body section. Engineered for a specific model, the harness ensures proper connection of all door-mounted components and stable communication with the vehicle's electrical system. This solution is dedicated to users who expect factory-fitment and hassle-free installation.

Specifications and technical data

• SKU: YMM502591B
• Mark: Land Rover
• Condition: Used
• OEM Part Number: YMM502591B
• Substitutable numbers: YMM502591B, YMM502591, 4H2214B518GA, 4H22-14B518-GA
• Location on the vehicle: Rear, Left
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the vehicle

The presented harness is designed for installation in the rear left door area of the Land Rover Discovery 3 L319. It is responsible for transmitting signals and power between the main body electrical system and components located in the door, such as actuators, switches, or comfort control elements.

The placement on the vehicle in the Rear, Left zone means that the harness has been structurally adapted to the geometry of the door and grommets, which reduces the risk of wire abrasion and facilitates correct routing of the installation during assembly.

Benefits of using an original harness

Using a dedicated door harness in the Land Rover Discovery 3 L319 allows for maintaining the consistency of the electrical system and avoiding problems typical of universal solutions. Key advantages include:

• factory-matched length and wire layout for the door structure,
• connectors and mounting points designed for the specific model,
• preservation of the vehicle's original electrical architecture,
• reduction of the risk of installation errors and diagnostic issues.

As a result, the harness serves as a practical service solution for post-collision repairs, electrical system interventions, or mechanical wire damage.

Use in service and repairs

This component is suitable for both professional workshops and informed users servicing their own vehicles. The rear left side harness is particularly important for:

• repairs following mechanical damage to doors or grommets,
• troubleshooting issues related to power or communication loss in the doors,
• restoring full functionality of electrical equipment components.

Proper fitment for the specific Land Rover model allows for seamless installation without the need for system modifications, which is significant for both durability and subsequent diagnostics of electrical systems.

Condition and origin

The rear left door harness comes from the original Land Rover parts segment and is offered as a used component. Such components are frequently chosen for repairs where maintaining the original vehicle specification while optimizing service costs is a priority.

Technical support and additional resources

If you are planning a comprehensive repair or upgrade of the body section in your Land Rover and need other elements from the same group, such as door harnesses, installation connectors, or auxiliary modules, check out the available parts in the Other Land Rover category.

For a comparison of technical solutions used in high-performance vehicles and a better understanding of the differences in powertrain and braking system construction, you can read the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the specifics of components in high-power cars.