Mercedes-Benz Sprinter W906 Front Right O/S Door Wiring Loom Harness A9060005999

Mercedes-Benz Sprinter W906 Front Right O/S Door Wiring Loom Harness is an original electrical system component from the Wires, harnesses and connectors group, designed for operation in the front door area. This solution allows for the restoration of proper door electrical functionality while maintaining the factory safety and performance standards of your Mercedes vehicle.

Specifications and technical data

• SKU: A9060034099
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9060034099
• Substitutable numbers: A9060034099, A 906 003 40 99, A9060005999, A 906 000 59 99, KZ
• Location on the vehicle: Front, Right
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the door wiring harness

The presented wiring harness is designed for installation in the front part of the body on the right side, in the door area. It is responsible for transmitting signals and power between the vehicle's main electrical system and components located in the door, such as door lock actuators, window regulators, or other electrical receivers specified by the manufacturer.

By maintaining the factory wire geometry and using properly matched connectors, the harness enables stable operation of electrical systems, reduces the risk of interference, and facilitates the diagnosis of potential faults in the future.

Construction and fitment for Mercedes-Benz Sprinter W906

The harness has been constructed specifically for the Sprinter W906 platform, which ensures proper routing of wires within the door and pillar, as well as matching the length of sections to factory mounting points. The connectors used are prepared for compatibility with original sockets in the body and door, allowing for installation without the need for any modifications to the electrical system.

This solution promotes the consistency of the entire electrical system and facilitates servicing – the harness can be replaced as a complete unit, without the need to interfere with individual wires or connectors.

Condition, service application, and benefits of installation

The item is a dismantled part intended for reinstallation in a vehicle where the factory door wiring has been damaged, e.g., due to wire abrasion in the grommet, contact corrosion, or mechanical damage to the harness. Using an original harness from the same model family ensures compliance with the manufacturer's service documentation.

The main benefits of installation include:

• restoration of proper electrical communication in the door,
• maintenance of factory wire routing and mounting points,
• reduction of installation error risks compared to custom-made wiring,
• easier future diagnostics thanks to compliance with the original schematic.

Application in workshop practice

Replacing the door wiring harness in a Sprinter W906 is a standard service operation in cases of recurring power or communication issues with components located in the door. Using a complete harness allows for shorter repair times, as the mechanic works with a ready-to-use, perfectly fitted set of wires and connectors, without the need to reconstruct the installation from scratch.

This solution is particularly useful for vehicles in intensive use, where rapid restoration of efficiency is important – e.g., in delivery, fleet, or service vehicles, where downtime generates additional costs.

Related products and technical knowledge

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as additional harnesses, wires, or connectors, check the available parts in the Mercedes Wires, harnesses and connectors category.

For a comparison of design solutions used in other popular models and a better understanding of how manufacturers develop electrical systems and component selection, it is worth reading the article Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts, which shows how changes in vehicle construction affect part selection and service strategy.