Mercedes C140 Power Steering Rack Box Gear A1404605401

Mercedes C140 Power Steering Rack Box Gear is a steering system component designed for the precise transmission of steering wheel movement to the vehicle's wheels. The offered unit comes from the Steering racks and housings group and is dedicated to Mercedes vehicles, ensuring proper power steering performance and stable vehicle handling.

Specifications and technical data

• SKU: RHD-A1404605401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1404605401
• Substitutable numbers: A1404605401
• Category: Gearboxes, Racks & Pinions

Purpose and function in the steering system

The steering rack in C140 series models is responsible for converting the rotation of the steering wheel into the linear movement of the tie rods, which enables control over the vehicle's trajectory. The design, integrated with the hydraulic power steering system, allows for smooth maneuvering, reduces the force required for steering, and ensures stable directional control at higher speeds. Using an original component from the Mercedes family helps maintain factory geometry and handling characteristics.

Benefits of using an original Mercedes steering rack

Using a steering rack from the same model line as the vehicle allows for maintaining compliance with the manufacturer's factory specifications. The original design ensures:

• properly selected steering ratio,
• compatibility with the factory power steering system,
• correct cooperation with the steering column and suspension components,
• consistency with safety systems dependent on the driving path.

As a result, after replacement, the vehicle's predictable response to steering wheel movement is preserved, which is important for both comfort and driving safety.

Component condition and installation aspects

The offered steering rack is a used component, which allows for an economical repair of the steering system while maintaining the original design. Before installation, it is recommended to perform a standard verification of tightness, operating play, and the condition of the connection ports, as well as to replace the power steering fluid in accordance with the vehicle's service procedure. A correctly installed steering rack allows for restoring proper system operation, eliminating excessive steering play, and reducing unwanted vibrations.

Application in service practice

The steering rack from this group is used both for typical replacement of a worn-out component and for post-accident repairs where the steering system or suspension has been damaged. Choosing an original sub-assembly from the Mercedes family facilitates workshop work, as it allows for the use of factory mounting points and standard design solutions without the need for adaptation.

Expansion of the Mercedes steering system

If you are planning a comprehensive repair or upgrade of the steering area in your Mercedes and need other elements from the same group, such as other racks, housings, or related components, check the available parts in the Mercedes steering racks and housings category.

For drivers and workshops interested in a broader perspective on selecting used drivetrain components and related sub-assemblies, a guide describing practical rules for assessing the condition of second-hand parts may be helpful – you can find it in the article Second-hand differential – what is worth knowing about used differentials, sensors, and drivetrain systems.