Stoptech 128.66065R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.66065R) are engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet the demands of vehicles like the Chevrolet Silverado 1500 and Cadillac Escalade, these rotors provide consistent stopping power with enhanced heat dissipation.

• Cross-drilled surface for improved heat and gas dissipation
• Vented rotor design to reduce brake fade
• Coated hat finish for corrosion resistance
• Compatible with 6-lug wheel configurations
• Precision fit for GM models including Chevrolet, GMC, and Cadillac

Product Features and Specifications

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling during braking. The cross-drilled surface helps to dissipate heat and gases generated under heavy braking, reducing the risk of brake fade. The rotor has a nominal thickness of 0.787 inches (20.000 mm) and a discard thickness of 0.728 inches (18.500 mm), ensuring a long service life before replacement is necessary.

The overall height measures 3.362 inches (85.400 mm), with an outside diameter of 13.583 inches (345.000 mm). It includes six stud/lug holes with a diameter of 0.650 inches (16.500 mm) and a mounting bolt hole circle diameter of 5.500 inches (139.700 mm). The rotor’s hat is coated to resist corrosion and has a center hole diameter of 3.091 inches (78.500 mm).

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance for trucks and SUVs that require reliable heat management and durability. The cross-drilled surface combined with a vented rotor design helps maintain consistent braking under demanding conditions, making it suitable for vehicles like the GMC Sierra 1500 and Cadillac Escalade EXT. This product line focuses on balancing performance and longevity with corrosion-resistant finishes.

Compatible Vehicles and Applications

• 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

These rotors are designed specifically for these GM models, ensuring proper fitment and optimal braking performance.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven rotor wear and warping
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency under heavy load or towing
• Noise and vibration from worn or damaged rotors

Installation Notes and Tips

Installation requires proper torque specifications for the 6-lug wheel setup. Ensure the rotor thickness is above the discard thickness of 0.728 inches before installation. The coated hat finish helps prevent corrosion, but it is recommended to clean the rotor surface before mounting brake pads. This rotor does not include bearings or an ABS tone ring, so verify compatibility with your vehicle’s braking system.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated 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 manufacturer or authorized distributor for exact warranty terms.