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 use with 330x28 mm brake discs. This used OEM component ensures proper positioning of the caliper relative to the disc, stable operation of the braking system, and maintenance of the vehicle's factory handling parameters.

Specifications and technical data

• SKU: 7L6615423L-4
• Mark: Audi
• Condition: Used
• OEM Part Number: 7L6615423L
• Substitutable numbers: 7L6615423L, 7L6 615 423 L
• Part type: Brake Caliper Bracket
• Category: Calipers & Brackets

Purpose and function in the braking system

The caliper carrier mounted on the rear axle on the left side (N/S) is responsible for the precise guidance of the caliper relative to the brake disc. When combined with a properly selected caliper and disc, it forms a stable working assembly that:

• maintains a constant, manufacturer-designed distance between the brake pad and the disc,
• ensures even wear of the friction linings,
• minimizes the risk of vibration and noise during braking,
• maintains the system geometry in accordance with Audi's factory specifications. By maintaining the original mounting geometry, the Audi Q7 4L Rear Brake Caliper Housing Carrier allows for seamless integration with the factory suspension and wheel hub, without the need for modifications to other components.

Benefits of using an original caliper carrier

Using a component from the same production line as the vehicle's factory equipment translates into a number of practical advantages:

• Factory fit – dimensional and structural compatibility with the Audi Q7 4L braking system, with no installation issues.
• Stable caliper operation – proper guidance of the caliper pins and brake pads, which promotes consistent braking force.
• Optimal compatibility with 330x28 mm discs – the carrier is designed for a specific disc size, which reduces the risk of overheating and uneven pressure.
• Consistency with other system components – maintaining the original braking characteristics intended by the vehicle manufacturer.

Characteristics of the used component

The offered carrier comes from dismantling, which means it is an original Audi part with preserved construction and mounting geometry. Such components are particularly valued for vehicle maintenance where it is important to maintain consistency with the factory braking system design while optimizing repair costs. For installation, standard service procedures are recommended: cleaning contact surfaces, checking threads, applying appropriate tightening torques, and – if necessary – replacing mounting bolts in accordance with the vehicle manufacturer's recommendations.

Support in selecting used brake components

If you want to make an informed choice when selecting a used caliper carrier and other system components, it is worth using practical tips on verifying condition, compatibility, and safety. You can find a detailed checklist in the article: Second-hand braking system: how to safely select discs, calipers, and ABS?. 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 carriers, brackets, or complete calipers, check the available parts in the Audi brake calipers and carriers category.