Mercedes W204 W211 OM642 Power Steering Pump Unit A0054660201

Mercedes W204 W211 OM642 Power Steering Pump Unit is an original component from the Power steering pumps group, designed for use in Mercedes vehicles equipped with the OM642 engine. This is a solution for users who expect stable steering system operation, predictable vehicle handling, and a proper fit for the factory installation.

Specifications and technical data

• SKU: A0054660201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0054660201
• Substitutable numbers: A0054660201, A 005 466 02 01
• Category: Power Steering Pumps

Technical characteristics and purpose

The presented power steering pump has been designed as a hydraulic system component responsible for generating pressure in the steering system. This ensures that the steering wheel operates smoothly, and maneuvering the vehicle – especially at low speeds and during parking – is significantly easier and more predictable.

Its original Mercedes origin ensures the maintenance of factory operating parameters, proper fit for mounts, and compatibility with hoses and other steering system components in W204 and W211 models with the OM642 unit.

Benefits of using an original power steering pump

Using this pump to replace a worn-out component allows for the restoration of correct steering assist characteristics, reduction of system operating noise, and minimization of the risk of uneven steering wheel operation. In practice, this translates into:

• smoother and more stable vehicle handling,
• better control over the car during precision maneuvers,
• reduced load on other steering system components.

A properly selected power steering pump also helps reduce the risk of leaks and excessive fluid overheating, which is important for the durability of the entire system.

Component condition and installation aspects

The pump is offered in used condition, which allows for an economical replacement while maintaining the manufacturer's original specifications. Before installation, a standard service procedure is recommended: checking the cleanliness of the hoses, assessing the condition of the fluid, and bleeding the system after installation to ensure smooth operation and avoid cavitation.

Thanks to its factory origin, the installation process is similar to replacing a part with a new one – without the need for modifications to mounts or the adaptation of non-standard connectors, which shortens work time and makes it easier to maintain the correct system geometry.

Selection by numbers and technical support

The component should always be selected based on vehicle data and manufacturer markings to ensure full compatibility with the specific engine and equipment version. In case of doubt, it is worth comparing the old pump with the offered unit in terms of connection type, housing shape, and the method of mounting to the engine.

If you want to better understand the relationships between pumps, injectors, and other power supply components, a guide on diagnostics and selecting components by OEM numbers will be helpful – check out the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which organizes many practical issues related to the operation of power supply systems and part selection.

Expanding work within the steering system

If you are planning a comprehensive repair or upgrade of the steering system area in your Mercedes and need other components from the same group, such as additional pumps, pressure hoses, or fluid reservoirs, check the available parts in the Mercedes power steering pumps category.

Summary

Mercedes W204 W211 OM642 Power Steering Pump Unit is a solution intended for users who want to restore the correct operation of the steering system while maintaining the manufacturer's original specifications. A properly selected and correctly installed pump ensures stable steering assist, comfortable maneuvering, and predictable vehicle behavior in daily use.