Stoptech 128.66052R Disc Brake Rotor - Rear Right

StopTech Rear Right Sport Rotor

The StopTech Sport Cross-Drilled Disc Brake Rotor, part number 128.66052R, is a direct replacement rear brake disc for factory brake systems and stock calipers. It is built for drivers who want improved braking response, cleaner heat management, and a finished look behind the wheel.

Compatible With 2002-2009 Chevrolet Trailblazer rear right, 2002-2009 GMC Envoy rear right, and other listed applications, this rotor uses a vented, X-drilled surface and coated hat finish to support consistent braking in daily driving conditions.

Key Features

• StopTech Sport Cross-Drilled Disc Brake Rotors line for OE-style replacement fitment
• Part number 128.66052R
• Cross-drilled surface helps disperse heat and brake dust
• Helps reduce pad glazing and improve initial bite
• Black e-coating helps protect against corrosion
• High-carbon metallurgy in most applications for quieter operation and improved crack resistance
• Vented rotor design with straight vane style
• Direct replacement for factory brake systems and stock calipers

Product Details

This rotor measures 12.795 inches in outside diameter, 3.346 inches in overall height, and 0.787 inches nominal thickness. It uses a 5-lug, 127 mm bolt circle, a 78.7 mm center hole, and a floating/DIH disc mounting configuration. The rear right application is listed for Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Isuzu Ascender, Buick Rainier, Chevrolet SSR, Trailblazer EXT, Envoy XL, Envoy XUV, and Oldsmobile Bravada across the model years shown in the fitment data.

For shoppers searching for a rear right brake rotor for 2002-2009 Chevrolet Trailblazer or a rear right disc brake rotor for 2002-2009 GMC Envoy, part number 128.66052R provides a direct replacement option with performance-focused rotor construction.

Common Issues This Rotor Can Address

• Brake fade from heat buildup during repeated stops
• Uneven pad contact caused by glazed brake pads
• Corrosion on exposed rotor surfaces
• Reduced wet-weather braking response
• Noise and vibration associated with worn rear brake discs

Installation Notes

Install on the rear right position only where the vehicle fitment matches the listed application. Verify rotor dimensions, bolt pattern, and hub fit before installation. This rotor is intended for factory brake systems and stock calipers; confirm pad condition and inspect related brake components during service.

Quality Assurance

StopTech Sport rotors are engineered as direct replacement brake discs with corrosion-resistant coating and high-carbon construction used in most applications. The design focuses on stable braking performance, improved heat control, and long-term durability for the listed Chevrolet Trailblazer, GMC Envoy, and related applications.