Stoptech 128.33127R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (part number 128.33127R) are engineered for Audi models including A4, A4 allroad, A4 Quattro, A5, A5 Quattro, A5 Sportback, A6, A6 Quattro, A7 Quattro, allroad, and Q5. These solid rotors feature a cross-drilled surface designed to improve heat dissipation and maintain consistent braking performance under demanding conditions.

• Cross-drilled solid disc brake rotor with X drilled surface type
• Coated hat finish for corrosion resistance
• Nominal thickness of 0.472 inches (12.000 mm) with discard thickness at 0.394 inches (10.000 mm)
• Overall height of 1.417 inches (36.000 mm)
• Outside diameter of 11.811 inches (300.000 mm)
• Floating disc mounting design
• 5 stud/lug holes with 0.602 inch (15.300 mm) diameter
• Center hole diameter of 2.677 inches (68.000 mm)
• Weight approximately 12.2 lbs (5.55 kgs)

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and reduced brake fade. The cross-drilled pattern allows for better ventilation and water dispersion, which is particularly beneficial for Audi vehicles used in both daily driving and spirited conditions. The coated hat finish helps protect against corrosion, extending rotor life and maintaining consistent braking feel.

Technical Details and Compatibility

This rotor is a solid type with a floating disc mounting, ensuring reliable fitment and performance on compatible Audi models. The precise dimensions, including a 300 mm outside diameter and 112 mm mounting bolt hole circle diameter, align with factory specifications for models such as the Audi A4 Quattro and Q5. The rotor does not include ABS tone rings or bearings, so it is intended for direct replacement where those components are not integrated.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi A4, A5, A6, A7, and Q5 models
• Improves heat dissipation to reduce brake fade during aggressive driving
• Addresses rotor corrosion issues with coated hat finish
• Enhances braking consistency in wet or humid conditions due to cross-drilled design
• Suitable for drivers seeking reliable OEM-equivalent rotor performance

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.394 inches) before installation
• Verify compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Use proper torque specifications for the 5 lug holes (15.3 mm diameter)
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Clean rotor surface before installation to remove any protective coatings or residues

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or manufacturer resources for exact warranty terms.