Audi A4 B9 Brake Caliper Front Wheel Brake Unit Housing Right O/S 8W0615124

Audi A4 B9 Brake Caliper Front Wheel Brake Unit Housing Right O/S is an original component from the Brake calipers and brackets group, designed for operation on the front right axle of the vehicle. This used OEM component ensures a factory-fit for the Audi braking system, facilitating installation and maintaining predictable, stable braking performance. It is an ideal solution for users seeking a technically verified part at a reasonable price while maintaining high manufacturing quality.

Specifications and technical data

• SKU: 8W0615124
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0615124
• Substitutable numbers: 8W0615124, 8W0 615 124
• Location on the vehicle: Front, Right
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is designed for operation on the front right side of the braking system. It is responsible for evenly pressing the brake pads against the disc, stabilizing the braking force on that side of the axle. Correct selection of the placement on the vehicle is crucial for maintaining braking symmetry and proper interaction with other system components.

Thanks to its factory design, the caliper works with the discs and pads intended for the specific model, which reduces the risk of installation issues as well as unwanted vibrations or uneven pad wear.

Construction and technical characteristics

The brake caliper from this series has been developed by the manufacturer for stable operation under both daily driving conditions and more dynamic use. The design features:

• a rigid housing ensuring adequate resistance to thermal deformation,
• pad guidance that limits jamming,
• adaptation for compatibility with the vehicle's factory hydraulic system.

The original Audi origin ensures compliance with factory dimensional tolerances, which translates into proper positioning relative to the disc and predictable piston operation characteristics.

Benefits of using an original caliper

Choosing a used, original caliper for the Audi A4 B9 is a solution that allows you to combine cost control with maintaining performance close to factory standards. The most important advantages include:

• factory fit – no need for modifications to mounts or lines,
• consistency with other brake system components,
• maintenance of a predictable braking force balance between the left and right sides of the axle,
• the ability to use standard pads and discs intended for this model.

This approach is particularly beneficial for repairs where the priority is to maintain the vehicle's original handling and braking characteristics.

Application in service and brake system upgrades

Audi A4 B9 Brake Caliper Front Wheel Brake Unit Housing Right O/S is suitable both for typical replacement of a worn-out element and for broader service work within the braking system. It can be used as a replacement part in the event of mechanical damage, uneven pad wear on one side, or issues with piston operation.

If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other elements from the same group, such as additional calipers, brackets, or mounting hardware, check out the available parts in the Audi brake calipers and brackets category.

Safe selection of used brake components

When choosing a used brake caliper, it is worth paying attention to compliance with manufacturer markings, the condition of working surfaces, and the completeness of mounting elements. It is also good practice to check other system components – discs, pads, and lines – to ensure the uniform operation of the entire system.

If you want to organize the process of selecting and installing used brake components, a guide describing the key steps for inspection and verification will be helpful. Practical tips can be found in the article "Second-hand brake system: how to safely select discs, calipers, and ABS?", which discusses the most important aspects of purchasing and evaluating such components.