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 a precision-engineered component from the Brake calipers and carriers category, designed for the rear left axle of the vehicle. The housing design ensures stable caliper guidance, correct positioning of the brake pads relative to the disc, and secure mounting within the Audi braking system.

Specifications and technical data

• SKU: 7L6615423L-1
• 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 function in the braking system

The rear left brake caliper housing in the Audi Q7 4L is responsible for the rigid mounting of the caliper relative to the wheel hub and the brake disc of a specific diameter and working thickness. A correctly selected component:

• maintains the caliper on the disc axis, which promotes even pressure of the brake pads,
• reduces unwanted vibrations and noise during braking,
• supports the stable operation of guide pins and sliding elements,
• allows for maintaining the factory braking force characteristics of the rear axle.

Thanks to its dedicated placement on the vehicle on the rear left side, the housing is matched to the suspension geometry and braking system of the specific Audi version, which facilitates installation and subsequent operation.

Compatibility and mounting fitment

The housing has been designed as a component corresponding to the factory solutions used by Audi in the Q7 4L generation model. This means maintaining the correct spacing of mounting points, adequate working space for the brake pads, and compatibility with the structurally intended brake disc.

Such fitment reduces the need for modifications, allows for the use of standard mounting points, and facilitates future service. For workshops, this means predictable labor time, and for the user – consistency with other components of the braking system.

Characteristics of the used component

The presented caliper housing is a secondary market component, which allows for the optimization of repair costs while maintaining a design consistent with the solutions used in the Audi Q7 4L. A used component, after proper verification, can be a rational choice in situations where it is necessary to replace a damaged or corroded housing while maintaining the original geometry of the system.

In practice, this means the ability to restore proper caliper operation, reduce the risk of uneven pad wear, and ensure stable disc guidance during intensive braking, all while maintaining a favorable cost-to-effect ratio.

Benefits of using a dedicated caliper housing

The use of the correct rear left caliper housing in the Audi Q7 4L translates into a number of practical benefits:

• consistency with factory design – maintaining original geometry and mounting points,
• easier diagnostics and service – the mechanic works with a known, predictable solution,
• the ability to use standard brake pads and discs intended for the given system,
• reduction of the risk of problems with caliper guidance, pad seizing, or uneven braking.

For the user, this means more predictable vehicle behavior during braking and the ability to maintain the braking system in a condition consistent with the manufacturer's specifications.

Support with selection and additional materials

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 calipers, carriers, or brackets, check the available parts in the Audi brake calipers and carriers category.

When choosing used braking system components, it is worth following a proven procedure for assessing technical condition. You can find a detailed checklist and practical tips in the article Second-hand braking system: how to safely select discs, calipers, and ABS?, which helps in making informed choices when selecting components in a used parts store.