Stoptech 127.33078L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.33078L) are engineered for Audi, Porsche, and Volkswagen vehicles, specifically designed for models like the Audi Q7, Porsche Cayenne, and Volkswagen Touareg. These rotors provide enhanced braking performance through advanced vented design and precision machining.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design with straight vane style for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Compatible with 5-lug wheel configurations and 130 mm bolt circle diameter
• Nominal outside diameter of 330 mm (12.992 inches) and overall height of 73.7 mm (2.902 inches)

Product Line Details: StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering rotors that combine cross-drilled holes and precision slots to optimize braking performance. This design helps reduce brake fade by improving heat dissipation and maintaining pad surface cleanliness. The vented rotor construction with straight vanes further enhances cooling efficiency, making this product line suitable for high-performance street and light track use. The coated hat finish adds durability by protecting against rust and corrosion.

Technical Specifications and Features

These rotors feature a nominal thickness of 28.0 mm (1.102 inches) with a discard thickness of 26.0 mm (1.024 inches), ensuring a clear service life indicator. The center hole diameter measures 85.0 mm (3.346 inches), and the rotor includes two miscellaneous holes for mounting or alignment purposes. The rotor weighs approximately 8.64 kg (19 lbs), balancing strength and weight for optimal vehicle dynamics. Note that ABS tone rings and bearings are not included with this part.

Applications and Problem Solving

• Improves braking performance on Audi Q7, Porsche Cayenne, and Volkswagen Touareg models
• Reduces brake fade during extended or aggressive driving
• Helps maintain consistent brake pad contact by cleaning pad surfaces
• Enhances rotor cooling to prevent warping and premature wear
• Protects against corrosion with coated hat finish for longer service life

Installation Notes and Tips

Ensure compatibility with your vehicle’s 5-lug wheel hub and 130 mm bolt circle diameter before installation. The rotor is designed for floating/dih disc mounting and requires proper torque specifications during installation. Since bearings and ABS tone rings are not included, reuse existing components or source separately as needed. Inspect brake pads and calipers for wear or damage when replacing rotors to maintain optimal braking system performance.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated finish and vented design contribute to durability and consistent braking performance. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed quality assurance to ensure reliability and customer satisfaction.