Stoptech 127.66065L 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 127.66065L) are engineered for enhanced braking performance and durability. Designed specifically for select Cadillac, Chevrolet, and GMC trucks and SUVs, these rotors provide reliable stopping power under demanding conditions.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad bite
• Vented rotor design with straight vane style to reduce brake fade
• Coated hat finish for corrosion resistance and extended rotor life
• Compatible with 6-lug wheel configurations and floating/dih disc mounting
• Precision fit for select Cadillac Escalade, Chevrolet Silverado 1500, GMC Sierra 1500, and related models

Detailed Product Features and Specifications

This vented disc brake rotor features a 345 mm (13.583 inch) outside diameter and an overall height of 85.4 mm (3.362 inches). The nominal thickness is 20.0 mm (0.787 inches) with a discard thickness of 18.5 mm (0.728 inches), ensuring optimal rotor life and safe replacement intervals. The rotor includes 6 stud/lug holes with a 139.7 mm (5.5 inch) bolt circle diameter and 16.5 mm (0.65 inch) hole diameter, designed for secure mounting on compatible vehicles. The rotor’s center hole diameter measures 78.5 mm (3.091 inches), and it features two additional miscellaneous holes for precise fitment. The floating/dih disc mounting style enhances rotor stability and performance during braking.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide improved braking efficiency through enhanced heat dissipation and pad bite. The combination of cross-drilled holes and slots helps to evacuate gases, dust, and water from the rotor surface, reducing brake fade and maintaining consistent stopping power. The vented rotor design with straight vanes further aids in cooling, making this product line suitable for both daily driving and more demanding conditions.

Compatible Vehicles and Applications

This rotor is compatible with a range of full-size trucks and SUVs, including:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche, Silverado 1500, Silverado 1500 LD, Suburban 1500, Tahoe
• GMC Sierra 1500, Sierra 1500 Limited, Yukon, Yukon XL, Yukon XL 1500

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during towing or heavy braking
• Uneven rotor wear leading to vibration or noise during braking
• Corrosion and rust on rotor surfaces reducing braking efficiency
• Reduced brake pad bite due to glazed or contaminated rotors
• Inadequate cooling in demanding driving conditions

Installation Notes and Tips

• Ensure rotor discard thickness (18.5 mm) is not exceeded before installation
• Verify compatibility with vehicle’s 6-lug wheel pattern and bolt circle diameter
• Clean rotor surface before installation to remove any protective coatings
• Use proper torque specifications for mounting bolts to avoid warping
• Inspect brake pads and replace if worn to maximize rotor performance

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. 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 the product documentation or manufacturer for exact warranty terms.