Brembo 09.A818.21 Disc Brake Rotor - Rear

Brembo Rear Rotor for Mercedes-Benz SL550

The Brembo Premium UV Coated OE Equivalent Rotor is a direct replacement disc brake rotor for rear brake service on select Mercedes-Benz SL550 models. Built with a high carbon cast iron construction where applicable and a drilled braking surface, it is engineered to support quieter operation, reduced vibration, and consistent braking feel.

For 2009 Mercedes-Benz SL550 rear brake repair and 2011-2012 Mercedes-Benz SL550 rear rotor replacement, part number 09.A818.21 provides an OE-style solution with corrosion protection and service-friendly details.

Key Features

• Premium UV coated finish for corrosion resistance on the disc and braking surfaces
• High carbon material where applicable to help reduce noise and vibration
• Drilled braking surface for performance-oriented brake service
• Vented rotor design for rear brake applications
• Fixing screws included for installation support
• Intelligent marking location shows part number and minimum thickness
• Outside diameter: 320 mm; nominal thickness: 24 mm; minimum thickness: 22 mm

Product Details

Brembo 09.A818.21 is part of the Premium UV Coated OE Equivalent Rotor line, a product line focused on direct replacement brake rotors that meet or exceed OEM specifications. The solvent-free UV coating helps protect the rotor from corrosion, including the braking plate surfaces, while the vented, drilled design supports stable heat management and braking consistency. This rotor is a practical choice for Mercedes-Benz SL550 rear brake maintenance when restoring factory-style braking performance.

This part cross-references Centric Parts 128.35096 for the same application.

What This Rotor Helps Address

• Rear brake pulsation from worn or uneven rotor surfaces
• Brake noise and vibration associated with aged rotors
• Corrosion on exposed rotor surfaces
• Reduced braking consistency from rotors below minimum thickness
• Service issues during Mercedes-Benz SL550 rear brake rotor replacement

Installation Notes and Tips

Fits 2009 Mercedes-Benz SL550, rear. Fits 2011-2012 Mercedes-Benz SL550, rear. Fitment notes indicate compatibility with Sport Package vehicles. Brembo recommends replacing rotors and pads together to restore braking performance. Verify rotor thickness and minimum thickness markings before installation, and pair this rotor with Brembo NAO/Ceramic or Low Met brake pad formulations when servicing the brake system.

Quality Assurance

Brembo manufactures this rotor as an OE-equivalent replacement with UV-coated surface protection and application-specific marking for service reference. Part number 09.A818.21 is built to support consistent brake service on select Mercedes-Benz SL550 rear applications.