Brembo 09.A334.21 Disc Brake Rotor - Rear

Brembo Rear Rotor for Toyota 4Runner and Lexus GX460

Brembo 09.A334.21 is a Premium UV Coated OE Equivalent Rotor built as a direct replacement for rear brake service on select Toyota 4Runner and Lexus GX460 applications. It uses grey cast iron construction and a vented design to support stable braking performance, quieter operation, and consistent pedal feel.

Key Features

• Premium UV Coated OE equivalent disc brake rotor
• Grey cast iron construction for dependable braking performance
• Vented rotor design
• UV coating helps protect exposed surfaces, including braking plate surfaces
• Minimum thickness marking location for service reference
• Direct replacement format for rear brake applications
• Part number: 09.A334.21

Product Details

The Brembo Premium UV Coated Rotor line is engineered for OE-style replacement where fit, finish, and braking consistency matter. This rotor measures 312 mm outside diameter, 67.9 mm height, 18 mm nominal thickness, and 16 mm minimum thickness. Brembo uses a solvent-free UV coating to help resist corrosion on the rotor surface, while the grey cast iron construction supports braking stability and reduced noise and vibration in applicable use cases. Brembo 09.A334.21 is a rear disc brake rotor for drivers servicing Toyota 4Runner rear brake components or Lexus GX460 rear brake components with an OE-equivalent part.

This part cross-references Centric Parts (e.g., 120.44175, 121.44175) for the same application.

Common Issues This Rotor Can Address

• Rear brake pulsation from rotor wear or thickness variation
• Surface corrosion on the braking face or hat area
• Noise and vibration from worn rear rotors
• Reduced braking consistency during routine brake service
• Need for an OE-style replacement rotor on Toyota 4Runner or Lexus GX460 rear brakes

Installation Notes and Tips

For best braking restoration, replace rotors and pads together. Brembo recommends pairing this rotor with NAO/Ceramic or Low Met brake pad formulations. Verify rear fitment by vehicle year and model before installation: Fits 2022-2024 Toyota 4Runner, Rear; Fits 2022-2023 Lexus GX460, Rear; Fits 2010-2021 Lexus GX460, Rear; Fits 2010-2021 Toyota 4Runner, Rear; Fits 2010-2014 Toyota FJ Cruiser, Rear. Confirm rotor thickness and service limits during brake inspection.

Quality Assurance

Brembo develops this UV Coated rotor as an OE-equivalent replacement that meets or exceeds OEM specifications. The coating process is solvent-free, and the rotor includes intelligent marking for part identification and minimum thickness reference.