Audi Q7 4L Rear Brake Caliper Housing Carrier Left N/S 330x28mm 7L6615423L

Audi Q7 4L Rear Brake Caliper Housing Carrier Left N/S 330x28mm is an original component from the Brake calipers and carriers group, designed for the rear left axle of the vehicle. Thanks to its factory design, it ensures proper compatibility with a brake disc of a specific diameter and thickness, stable brake pad guidance, and predictable braking system performance. It is a practical solution for Audi users looking for a proven, used part with maintained mounting geometry.

Specifications and technical data

• SKU: 7L6615423L
• Mark: Audi
• Condition: Used
• OEM Part Number: 7L6615423L
• Substitutable numbers: 7L6615423L, 7L6 615 423 L
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and fitment

The presented caliper is designed specifically for the rear left side of the braking system in the Audi Q7 4L generation. Its correct placement on the vehicle guarantees proper cooperation with the carrier, hub, and brake disc with dimensions of 330x28 mm, which translates into stable braking parameters and even brake pad wear.

Thanks to the OEM design, factory mounting points, correct bolt spacing, and guide geometry are preserved, which facilitates installation and minimizes the risk of fitment issues. This is particularly important when servicing the rear axle, where the precision of the caliper's operation affects the effectiveness of the parking brake and driving comfort.

Construction and function in the braking system

The brake caliper is responsible for converting hydraulic pressure into the force that presses the pads against the disc. This model features a solid, high-rigidity body that limits deformation during heavy braking. The guides and pad seats are designed to ensure even pressure and reduce the risk of overheating one side of the disc.

In practice, this means:

• stable operation of the braking system during daily use,
• proper cooperation with the rear axle and vehicle safety systems,
• serviceability using standard workshop tools.

For the user, this translates into predictable vehicle behavior during braking and easier maintenance in the future.

Characteristics of the used OEM part

The offered caliper is an original Audi component in used condition, which allows for maintaining factory performance parameters while reducing repair costs. Compared to low-budget replacements, the OEM part ensures better compatibility with the vehicle's design, proper fitment to the carrier, and predictable cooperation with ABS and ESP systems.

A used brake caliper is a particularly attractive choice in situations where:

• a quick replacement of a damaged component after a mechanical failure is necessary,
• maintaining the original braking system specification is a priority,
• optimizing repair costs while maintaining safety is important.

Benefits of installation in the Audi Q7 4L

Replacing a worn or damaged caliper with a functional OEM unit allows for restoring even braking force distribution on the rear axle, reducing vehicle pulling during braking, and lowering the risk of disc overheating. A correctly selected rear left caliper also supports the proper operation of driver assistance systems, which rely on precise wheel speed control.

This solution is recommended both for standard maintenance and post-collision repairs, where it is crucial to restore the factory geometry of the braking system without unnecessary modifications.

Braking system expansion and technical knowledge

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

To better understand how to select used braking system components and how to reduce service costs without compromising safety, it is worth checking out our guide: Brake calipers under the microscope: How to effectively reduce braking system repair costs by choosing proven recycled parts. This will make it easier for you to assess when choosing an original, used caliper is the most cost-effective and technically justified option.