Mercedes-Benz Vito W639 Power Steering Hydraulic Pipe Oil Lines A6394663024

Mercedes-Benz Vito W639 Power Steering Hydraulic Pipe Oil Lines is an original system component responsible for the safe transport of oil within the power steering installation. Thanks to its factory-fit design for the Vito W639 model, it ensures stable operating pressure, proper pump performance, and precise steering system operation. It is a practical solution for users who want to restore system efficiency without experimenting with aftermarket replacements.

Specifications and technical data

• SKU: rhd-A6394663024
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6394663024
• Substitutable numbers: A6394663024, A 639 466 30 24, KZ
• Category: Power Steering Pumps

Purpose and function in the power steering system

The hydraulic pipe in the power steering system is responsible for transporting pressurized oil between key system components. In the case of the Vito W639, proper routing of the working medium has a direct impact on:

• the force required to turn the steering wheel,
• the stability of the power steering pump,
• reduction of noise and vibrations in the system,
• smooth operation of the steering gear.

Selecting a pipe dedicated to a specific vehicle model helps avoid issues with leaks, incorrect routing in the engine bay, or excessive pump load.

Original origin and fitment for Mercedes Vito W639

The original hydraulic pipe for the power steering system in the Mercedes-Benz Vito W639 has been designed with the specific oil line routing, mounting points, and pressure requirements of this model in mind. As a result, it:

• fits factory brackets and mounts on the chassis,
• ensures correct pipe routing while maintaining required bending radii,
• minimizes the risk of abrasion against body elements or engine accessories.

Such fitment translates into stable power steering system operation and reduces the risk of failures resulting from improper installation or the use of random replacements.

Characteristics of the used component

The offered pipe comes from the group of used Mercedes parts, which allows for an economical repair of the power steering system while maintaining the original design. A component of this type is particularly attractive in situations where:

• a quick replacement of a damaged pipe after an oil leak is necessary,
• maintaining the factory routing of the hydraulic installation is important,
• compatibility with the original power steering pump and other system components is essential.

Choosing a used OEM pipe allows for reduced service costs while keeping the construction consistent with the vehicle manufacturer's specifications.

Support for selection and system diagnostics

When replacing a hydraulic pipe, it is worth paying attention to the overall condition of the power steering system – the level and quality of the oil, the tightness of connections, and the condition of the pump. Technical materials regarding part selection by factory numbers and operating principles of power supply and hydraulic systems may be helpful. In this context, it is worth checking the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses, among other things, a practical approach to diagnostics and component selection based on manufacturer markings.

Related components from the Mercedes power steering group

If you are planning a comprehensive repair or upgrade of the steering and power steering area in your Mercedes and need other elements from the same group, such as pressure hoses, return lines, or pump supply components, check the available parts in the Mercedes power steering pumps category.