Mercedes W204 Wheel Hub Carrier Bearing Axle Rear Right O/S A2043500441

The Mercedes W204 Rear Right Wheel Hub Knuckle Assembly is an original suspension component from the Bearings, Wheel Hubs, and Bushings category, designed for installation on the rear right axle. This solution is for users who expect precise handling, stability, and the preservation of factory suspension characteristics in Mercedes vehicles.

Specifications and technical data

• SKU: A2043500441-7
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2043500441
• Substitutable numbers: A2043500441, A 204 350 04 41, A2309810127, A 230 981 01 27, A2044211820, A 204 421 18 20, BG
• Location on the vehicle: Rear, Right
• Part type: Wheel Hub
• Category: Wheel Bearings, Hubs & Seals

Purpose and Function in the Drivetrain

The rear right wheel knuckle with hub in Mercedes W204 models is responsible for stable wheel mounting, transferring loads from the suspension to the body, and proper vehicle guidance through corners. This component works in conjunction with the suspension, brakes, and bearing system, influencing:

• maintaining correct rear axle geometry,
• even tire wear,
• vehicle stability at higher speeds,
• safe transfer of forces during braking and acceleration.

By using a component dedicated to a specific model, dimensional and mounting compatibility with the factory suspension system is ensured.

Compatibility and Interchangeable Numbers

The knuckle with hub belongs to the OEM Mercedes parts group and has an assigned part number and a set of interchangeable numbers, which facilitates the selection of the correct component for a specific body and engine version. The presence of reference numbers allows for:

• verification of compatibility with manufacturer catalogs,
• comparison with the part removed from the vehicle,
• easy identification in service centers and workshops.

Before purchasing, it is advisable to compare the markings with your vehicle's data or consult a mechanic to ensure that the selected knuckle will be suitable for the rear right side of your specific Mercedes W204.

Vehicle Placement and Mounting Aspects

The presented component is intended for the rear right side of the vehicle, which is crucial when selecting parts for cars with independent suspension. The knuckle with hub is structurally adapted to:

• the geometry of the rear right side of the body,
• the mounting points of the control arms and shock absorber,
• the seat for the wheel bearing and hub.

Correct placement on the vehicle reduces the risk of geometry issues, suspension play, or incorrect wheel alignment relative to the body.

Characteristics of a Used Mercedes Part

The rear right wheel hub knuckle comes from disassembly, which allows for the preservation of the factory manufacturing quality characteristic of the Mercedes brand. A used component is a solution for drivers who want to:

• maintain the original drivetrain specification,
• reduce repair costs while maintaining an adequate level of durability,
• avoid fitting problems typical of aftermarket parts of uncertain origin.

Before installation, a standard inspection of the mounting surfaces, bearing seats, and mounting points is recommended to ensure the proper functioning of the entire rear suspension assembly.

Why Choose the Mercedes W204 Wheel Hub Knuckle

Choosing an original knuckle with hub for the Mercedes W204 is an investment in stable handling and predictable vehicle behavior. A correctly selected rear right axle component:

• reduces the risk of vibrations and noises originating from the wheel area,
• facilitates subsequent suspension geometry alignment,
• supports even wear of tires and cooperating components.

If you also need other components from the Bearings, Wheel Hubs, and Bushings category dedicated to this brand, check out our offer for Mercedes Bearings, Wheel Hubs, and Bushings to select a complete solution for your drivetrain.

More About Used Car Parts

Have doubts about choosing a used knuckle or other suspension components? We encourage you to read the article Used Car Parts: Myths and Facts You Need to Know, which explains how to make informed choices about second-hand components and what to look for when purchasing.