Stoptech 127.66052L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.66052L is engineered for reliable braking performance on select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Designed to meet the demands of vehicles like the Trailblazer, Envoy, and SSR, this rotor offers enhanced heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design with straight vane style for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Compatible with 6-lug bolt pattern and 12.795 inch (325 mm) outside diameter
• Nominal thickness of 0.787 inches (20.000 mm) with discard thickness at 0.728 inches (18.500 mm)

Detailed Product Features and Specifications

This StopTech rotor features a vented design with straight vanes that promote airflow, reducing brake fade during heavy use. The cross-drilled and slotted surface helps evacuate brake dust, water, and gases, maintaining consistent pad contact and improving braking response. The coated hat finish protects against rust and corrosion, which is especially beneficial for vehicles exposed to harsh weather conditions.

With an overall height of 3.346 inches (85.000 mm) and a center hole diameter of 3.098 inches (78.700 mm), this rotor fits vehicles equipped with a 6-stud lug pattern and a 5.000 inch (127.000 mm) bolt circle diameter. Weighing approximately 18 lbs (8.18 kg), it balances durability with manageable weight for optimal performance.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for sport and performance-oriented vehicles. This product line focuses on improving heat dissipation and pad bite through precision cross-drilling and slotting patterns, making it suitable for drivers who require consistent braking under demanding conditions. The rotors in this line are vented and coated to ensure durability and resistance to corrosion.

Compatible Vehicles and Common Applications

• Buick 9-7x
• Chevrolet Trailblazer, Trailblazer EXT, SSR
• GMC Envoy, Envoy XL, Envoy XUV, Rainier
• Isuzu Ascender, Bravada
• Oldsmobile Bravada
• Saab models compatible with specified dimensions

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven pad wear due to poor rotor surface design
• Corrosion and rust on rotor hats and braking surfaces
• Reduced braking performance in wet conditions
• Vibration or noise from warped or damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.728 inches) before installation
• Verify compatibility with vehicle lug pattern (6 lug, 5.000 inch bolt circle)
• Clean rotor surface before installation to remove any protective coatings
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The 127.66052L rotor undergoes strict quality control processes, including dimensional accuracy and surface finish inspections. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.