Brembo 09.8890.21 Disc Brake Rotor - Rear, Rear Left or Rear Right

Overview of Brembo Premium UV Coated OE Equivalent Rotor

The Brembo 09.8890.21 disc brake rotor is engineered for Porsche Boxster and Cayman models, delivering reliable braking performance with advanced materials and design. This rotor features a high carbon composition and a UV coated rust-resistant surface to ensure durability and consistent operation.

• High carbon material for enhanced heat dissipation
• Drilled braking surface for improved cooling and reduced brake fade
• Vented rotor design to maintain optimal temperature during heavy braking
• UV coated rust-resistant finish for extended rotor life
• Precision centering diameter of 98 mm and 5-hole configuration
• Nominal thickness of 24 mm with a minimum thickness of 22 mm
• Outside diameter of 299 mm and height of 67 mm
• Torque specification of 130 Nm for secure installation

Detailed Product Description

The Brembo 09.8890.21 rotor is crafted from high carbon steel, which enhances thermal conductivity and reduces the risk of warping under extreme braking conditions. Its drilled braking surface allows for better heat dissipation and helps to evacuate gases and debris, improving overall braking efficiency. The vented design further aids in cooling by allowing air to flow between the rotor surfaces, which is critical for maintaining performance during repeated stops.

Additionally, the rotor is coated with a UV resistant finish that protects against rust and corrosion, extending the rotor’s service life and maintaining its appearance. The precise centering diameter of 98 mm and 5-hole bolt pattern ensure a proper fitment on Porsche Boxster and Cayman models, making it a direct replacement part. The rotor’s dimensions, including a 299 mm outside diameter and 67 mm height, align with OEM specifications for these vehicles.

About the Premium UV Coated OE Equivalent Rotor Line

This product is part of Brembo’s Premium UV Coated OE Equivalent Rotor line, designed to meet or exceed original equipment standards. The UV coating provides enhanced corrosion resistance compared to standard rotors, while the high carbon material and drilled design focus on maintaining consistent braking performance. This line is intended for drivers seeking reliable, OE-quality replacement rotors with added protection against environmental wear.

Applications and Problem Solving

• Replacement for worn or warped rotors on Porsche Boxster and Cayman models
• Improves braking performance by reducing heat buildup and brake fade
• Prevents rust and corrosion that can compromise rotor integrity
• Addresses noise and vibration issues caused by uneven rotor surfaces
• Ensures proper fitment and torque specifications for safe installation

Installation Notes and Tips

When installing the Brembo 09.8890.21 rotor, ensure the mounting surface is clean and free of debris to maintain proper centering. Use the specified torque of 130 Nm to secure the rotor bolts evenly, preventing distortion. It is recommended to inspect brake pads and hardware during installation to ensure optimal braking system performance. Follow manufacturer guidelines for break-in procedures after installation.

Quality Assurance and Warranty

Brembo rotors are manufactured to meet strict quality standards, ensuring durability and consistent performance. The Premium UV Coated OE Equivalent Rotor line undergoes rigorous testing to comply with OEM specifications. Warranty details should be confirmed with the point of purchase or Brembo directly, as coverage may vary by region and application.