Brembo 09.D423.11 Disc Brake Rotor - Front

Brembo Front Brake Rotor for Audi

The Brembo 09.D423.11 is a premium front disc brake rotor built for select Audi applications. It uses high carbon cast iron and a full cast construction with a smooth, vented design to support consistent braking performance and stable pedal feel.

As part of Brembo’s Premium UV Coated OE Equivalent Rotor line, this rotor includes a rust-resistant coating for added protection on exposed surfaces. It is sized at 349 mm outside diameter with a 34 mm nominal thickness and 32 mm discard thickness, making it a direct-fit replacement for the listed front applications.

Key Features

• Part number: 09.D423.11
• High carbon cast iron construction
• Full cast, vented rotor design
• Rust-resistant coating on exposed surfaces
• Smooth surface type
• 349 mm outside diameter
• 34 mm nominal thickness; 32 mm discard thickness
• 5-lug rotor configuration
• Premium UV Coated OE Equivalent Rotor line

Detailed Product Overview

This Brembo brake rotor is engineered for front axle use on select Audi models, including Audi A4 allroad, A4 Quattro, A5 Quattro, A5 Sportback, A6 allroad, A6 Quattro, A8 Quattro, Q5, Q5 PHEV, Q5 Sportback, Q7, S4, S5, S5 Sportback, S6, S8, SQ5, SQ5 Sportback, and SQ7. The high carbon cast iron material helps manage heat under repeated braking, while the vented construction supports airflow through the rotor.

The Premium UV Coated OE Equivalent Rotor line focuses on OE-style fit and finish with added corrosion protection. This makes the 09.D423.11 a practical choice for drivers replacing a worn front rotor on Audi A4 Quattro, Audi Q5, or Audi Q7 applications where correct dimensions and surface quality matter. This part cross-references Raybestos Brakes 982153 for the same application.

What This Rotor Helps Address

• Brake pulsation from a worn or uneven front rotor
• Reduced braking consistency caused by rotor wear
• Surface corrosion on exposed rotor areas
• Noise related to rotor surface condition
• Loss of braking smoothness on front axle service

Installation Notes and Fitment

Fits 2023-2024 Audi A4 allroad, front, PRIME.

Fits 2023-2024 Audi A4 Quattro, front, PRIME.

Fits 2023-2024 Audi A5 Quattro, front, PRIME.

Fits 2023-2024 Audi A5 Sportback, front, PRIME.

Fits 2020-2024 Audi A6 allroad, front, PRIME.

Fits 2020-2024 Audi A6 Quattro, front, PRIME.

Fits 2019-2024 Audi A8 Quattro, front, PRIME.

Fits 2023-2024 Audi Q5, front, PRIME.

Fits 2022-2024 Audi Q5 PHEV, front, PRIME.

Fits 2023-2024 Audi Q5 Sportback, front, PRIME.

Fits 2017-2024 Audi Q7, front, PRIME.

Fits 2022-2024 Audi S4, front, PRIME.

Fits 2022-2024 Audi S5, front, PRIME.

Fits 2022-2024 Audi S5 Sportback, front, PRIME.

Fits 2020-2024 Audi S6, front, PRIME.

Fits 2020-2024 Audi S8, front, PRIME.

Fits 2022-2024 Audi SQ5, front, PRIME.

Fits 2022-2024 Audi SQ5 Sportback, front, PRIME.

Fits 2020-2024 Audi SQ7, front, PRIME.

Fits 2017-2022 Audi A4 allroad, front, PRIME UV Coated.

Fits 2017-2022 Audi A4 Quattro, front, PRIME UV Coated.

Fits 2018-2022 Audi A5 Quattro, front, PRIME UV Coated.

Fits 2018-2022 Audi A5 Sportback, front, PRIME UV Coated.

Fits 2020-2021 Audi Q5 PHEV, front, Premium UV Coated OE Equivalent Rotor.

Fits 2018-2021 Audi S4, front, Premium UV Coated OE Equivalent Rotor.

Fits 2018-2021 Audi S5, front, Premium UV Coated OE Equivalent Rotor.

Fits 2018-2021 Audi S5 Sportback, front, Premium UV Coated OE Equivalent Rotor.

Fits 2018-2021 Audi SQ5, front, Premium UV Coated OE Equivalent Rotor.

Fits 2021 Audi SQ5 Sportback, front, Premium UV Coated OE Equivalent Rotor.

Fits 2017-2020 Audi A4, front, PRIME UV Coated.

Before installation, confirm rotor diameter, thickness, center hole diameter, and lug count match the vehicle’s front brake specification. Inspect pads and caliper hardware for wear, and replace any components that do not meet service limits.

Quality Assurance

Brembo is known for OE-equivalent brake components, and this rotor is built to match the listed Audi front applications with the specified dimensions and coated finish. Part number 09.D423.11 is manufactured as a premium replacement rotor for consistent fitment and corrosion resistance.