Stoptech 128.33137R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.33137R) are engineered for Audi and Porsche vehicles, including models such as the Audi A4, A5, A6, A7, Q5, and Porsche Macan and Cayenne. These rotors provide reliable braking performance with a vented design and cross-drilled surface to enhance heat dissipation and reduce brake fade.

• Cross-drilled surface for improved heat dissipation
• Vented rotor design with pillar-style vanes
• Coated hat finish for corrosion resistance
• Floating disc mounting for thermal expansion
• Compatible with multiple Audi and Porsche models
• Nominal thickness of 21.8 mm and discard thickness of 20.0 mm
• Outside diameter of 330 mm (12.992 inches)
• 5 lug/stud holes with 112 mm bolt circle diameter

Detailed Product Features and Specifications

The StopTech Sport Cross-Drilled Disc Brake Rotors feature a vented design with pillar-style vanes that promote efficient airflow to keep rotor temperatures down during demanding driving conditions. The cross-drilled surface pattern helps to evacuate gases and debris from the brake pad interface, improving braking consistency. The rotor’s hat is coated to resist corrosion, extending the service life of the part. With an overall height of 36.2 mm and a center hole diameter of 68 mm, these rotors are designed for precise fitment on compatible Audi and Porsche vehicles. The floating disc mounting system accommodates thermal expansion, reducing the risk of warping under heavy use.

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed for drivers seeking enhanced braking performance with a focus on heat management and durability. This product line combines cross-drilled rotor surfaces with vented construction to optimize cooling and reduce brake fade. The rotors are engineered to meet the demands of both street and light track use, making them suitable for performance-oriented Audi and Porsche models such as the A4 Quattro, S5 Sportback, and Macan.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves heat dissipation to prevent rotor warping
• Minimizes brake dust and gas buildup on pads
• Enhances braking consistency in wet conditions
• Provides corrosion resistance for longer rotor life

Installation Notes and Tips

• Ensure compatibility with your specific Audi or Porsche model before installation
• Check rotor thickness and discard limits to confirm suitability
• Use proper torque specifications for the 5-lug mounting pattern with 112 mm bolt circle diameter
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. It is recommended to consult the product documentation or manufacturer for exact warranty terms.