Stoptech 127.66069R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.66069R) are engineered for enhanced braking performance on select Buick, Chevrolet, GMC, and Saturn SUVs. Designed specifically for models like the Acadia, Acadia Limited, Enclave, Outlook, and Traverse, these rotors offer reliable stopping power with improved heat dissipation and reduced brake fade.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to maintain optimal operating temperatures
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with 6-lug wheel configurations and specific bolt patterns

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on performance-oriented rotors that combine cross-drilled holes and precision slots. This design improves brake pad bite and helps evacuate heat and debris during braking. The rotors are vented with straight vanes to enhance airflow and cooling, making them suitable for heavier vehicles like the Buick Enclave and Chevrolet Traverse. The coated hat finish adds corrosion resistance, which is important for maintaining rotor integrity over time.

Technical Specifications and Features

This rotor features a nominal thickness of 1.142 inches (29.000 mm) and a discard thickness of 1.083 inches (27.500 mm), ensuring a solid lifespan before replacement is necessary. The overall height measures 2.157 inches (54.800 mm), with an outside diameter of 12.795 inches (325.000 mm). It includes a center hole diameter of 2.972 inches (75.500 mm) and a mounting bolt hole circle diameter of 5.197 inches (132.000 mm), designed for vehicles with six lug holes each measuring 0.618 inches (15.700 mm) in diameter. The rotor weighs approximately 23.15 lbs (10.52 kgs), balancing durability and performance.

Applications and Problem Solving

• Improves braking performance on Buick Acadia, Chevrolet Traverse, and GMC Outlook
• Reduces brake fade during extended or heavy braking conditions
• Minimizes rotor warping and cracking through vented design and floating mounting
• Enhances heat dissipation to maintain consistent brake feel
• Resists corrosion with coated hat finish for longer service life

Installation Notes and Tips

• Ensure compatibility with your vehicle’s 6-lug wheel setup and bolt pattern
• Check rotor thickness before installation; replace if below discard thickness
• Use proper torque specifications on mounting bolts to avoid rotor distortion
• Inspect brake pads and calipers during rotor replacement for optimal performance
• Floating disc mounting requires correct alignment to prevent uneven wear

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The coated hat finish provides additional protection against rust and corrosion. While specific warranty details are not provided here, StopTech products typically come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.