Mercedes W177 A35 Wheel Carrier Hub Front Right O/S Axle Suspension Bearing

The Mercedes W177 A35 Front Right Wheel Hub Knuckle is a suspension component from the Control Arms & Ball Joints category, designed for the front right side of the suspension. It is responsible for precise wheel guidance, stable hub mounting, and correct geometry, which translates into safe and predictable handling of the Mercedes car on the road.

Specifications and technical data

• SKU: A1773321400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1773321400
• Substitutable numbers: A1773321400, A 177 332 14 00, A2473340500, A 247 334 05 00, A1774210600, A 177 421 06 00, BG
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Function in the Suspension

The front right wheel hub knuckle is a key element connecting the suspension strut, steering system, and wheel assembly. In the Mercedes A-Class W177 generation, A35 version, it is responsible for:

• maintaining the correct wheel position relative to the car body,
• stable transfer of loads from the road surface to the suspension,
• ensuring proper operation of the wheel bearing and hub,
• cooperation with geometry control elements such as control arms and ball joints.

Thanks to its appropriately designed structure, the knuckle supports precise car handling and predictable steering response, which is particularly important in the sporty A35 version.

Construction and Fitment for Mercedes W177 A35

The presented wheel hub knuckle has been specifically designed for the suspension architecture of the Mercedes W177 A35. This means correct mounting points for control arms, ball joints, the shock absorber, and brake system components. Such a fit ensures that the factory geometry parameters and handling characteristics are maintained.

The component is prepared for installation on the front right side of the vehicle, eliminating the risk of errors during part selection and facilitating service work. The design intended for this body and drivetrain version ensures compatibility with Mercedes' factory suspension solutions.

Benefits of Using an Original Wheel Hub Knuckle

Choosing a wheel hub knuckle dedicated to the W177 A35 allows for maintaining the integrity of the entire suspension system. The most important benefits include:

• maintaining factory geometry – correct wheel camber and toe angles after alignment,
• secure mounting of the hub and bearing, which reduces the risk of play and unwanted vibrations,
• proper cooperation with control arms and ball joints,
• compatibility with the factory brake and steering system.

Thanks to this, the car maintains predictable, stable handling, and the driver can fully utilize the potential of the A35 version's drivetrain.

Condition and Service Application

The wheel hub knuckle is a part from the aftermarket, making it an attractive cost-effective alternative for suspension repairs. It is particularly useful in situations of mechanical damage, e.g., after hitting a curb, a collision, or driving on uneven roads.

When replacing, it is recommended to inspect the cooperating components – control arms, ball joints, and mounting elements – to fully utilize the potential of the newly installed knuckle and avoid secondary play in the system.

More About Suspension and Parts for Mercedes

If you are looking for other components from the Control Arms & Ball Joints category for this brand's cars, check out our offer for Mercedes Control Arms & Ball Joints, where you will find a wide selection of compatible suspension components.

Want to better understand how the knuckle works with other drivetrain components? Read the guide Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers to consciously plan suspension repairs and upgrades for your car.