Mercedes W251 Wheel Carrier Hub Front Right O/S Leg Brake Disc Caliper

The Mercedes W251 Steering Knuckle Wheel Hub Front Right Caliper Disc is a complete, used assembly of suspension and braking system components designed for the front right side. This kit offers a practical service solution for Mercedes vehicles, enabling efficient replacement of a damaged steering knuckle assembly with hub, caliper, and disc without the need to source individual components.

Specifications and technical data

• SKU: A2513301420
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2513301420
• Substitutable numbers: A2513301420, A 251 330 14 20, A1644202483, A 164 420 24 83, A1644211412, A 164 421 14 12
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Vehicle Application and Placement

The presented steering knuckle assembly with hub, caliper, and disc is intended for installation on the front right side of the vehicle. It is responsible for wheel guidance, transferring loads from the suspension to the body, and interacting with the braking and steering systems. A correctly chosen component in this area is crucial for driving stability, steering precision, and braking effectiveness.

Assembly Structure and Component Functions

The described product includes a steering knuckle integrated with the wheel hub and braking system components – the caliper and disc. This configured assembly allows for:

• ensuring stable mounting of the hub and wheel bearing relative to the suspension,
• proper interaction with control arms and ball joints on the front axle,
• rigid guidance of the caliper relative to the disc, contributing to even braking,
• maintaining correct front axle geometry after proper installation and wheel alignment.

By combining several components into a single service unit, the risk of incompatibility between individual parts is reduced, and repair time is shortened.

Benefits of Using an Original Mercedes Assembly

The product comes from the Mercedes line, meaning it retains the factory characteristics of the suspension and braking system. The original steering knuckle geometry and the correct positioning of control arm and ball joint mounting points facilitate setting driving parameters according to the manufacturer's specifications. Using a complete assembly with hub, caliper, and disc also allows for:

• minimizing vibrations and play within the wheel area with proper installation,
• achieving predictable vehicle response to steering inputs,
• maintaining even wear of tires and brake components.

The used nature of the part allows for economical repair while maintaining a construction consistent with factory solutions.

Application in Suspension and Braking Systems

The steering knuckle with hub works directly with components from the Control Arms and Ball Joints group, forming a cohesive wheel guidance system. A correctly chosen assembly influences:

• the precision of ball joint operation and the freedom of suspension movement across its full range of travel,
• vehicle stability during emergency braking and evasive maneuvers,
• maintaining wheel alignment relative to the body, contributing to driving comfort.

For users who want to better understand the relationships between shock absorbers, control arms, and stabilizers in the context of safety, the article will be helpful: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers.

Selection, Compatibility, and Technical Support

The component has a dedicated OEM part number and associated interchange numbers, which facilitates precise identification and selection for a specific body version and suspension system. Verifying compatibility by part number helps avoid installation issues and incorrect front axle geometry. If you have doubts when choosing a used component, it is worth using the practical tips described in the guide: How to Professionally Select Used Car Parts While Maintaining OEM Compliance.

If you are planning a comprehensive repair or upgrade of the front suspension area in your Mercedes and need other parts from the same group, such as additional steering knuckles, hubs, or ball joints, check the available parts in the category Mercedes Control Arms and Ball Joints.