Stoptech 227.66057R Disc Brake Rotor - Front Right

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.66057R) are engineered for reliable braking performance on select Cadillac, Chevrolet, and GMC trucks and SUVs. Designed to meet the demands of vehicles like the Chevrolet Silverado 1500 and GMC Yukon XL, these rotors provide consistent stopping power with enhanced heat dissipation.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Floating disc mounting for better rotor alignment and reduced stress
• Compatible with 6-lug wheel configurations
• Precision dimensions: 330 mm outside diameter, 30 mm nominal thickness

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering enhanced braking performance through advanced rotor surface technology. The combination of cross-drilled holes and slots helps to evacuate heat, brake dust, and gases more efficiently than standard rotors. This product line is designed for drivers who require dependable braking on heavy-duty vehicles such as the Cadillac Escalade and Chevrolet Tahoe, where heat management and rotor durability are critical.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling. The rotor measures 330 mm (12.992 inches) in outside diameter with a nominal thickness of 30 mm (1.181 inches), ensuring compatibility with factory brake calipers. The overall height is 55 mm (2.165 inches), and the center hole diameter is 78.5 mm (3.091 inches). It includes six stud/lug holes with a diameter of 16.08 mm (0.633 inches) arranged on a 140.5 mm (5.531 inches) bolt circle diameter. The rotor weighs approximately 25.5 lbs (11.59 kgs). This part does not include ABS tone rings or bearings.

Compatible Vehicles and Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT, XTS
• Chevrolet Avalanche, Cheyenne, Silverado 1500 (including Classic and LD), Suburban 1500, Tahoe, Express 1500
• GMC Sierra 1500 (Classic and Limited), Yukon, Yukon XL, Yukon XL 1500, Savana 1500

This rotor is designed to replace factory parts on these models, providing a direct fit and maintaining original braking system performance.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during towing or heavy braking
• Uneven rotor wear leading to brake pulsation or noise
• Reduced braking efficiency due to gas and dust accumulation on rotor surface
• Warped rotors from thermal stress
• Compatibility issues with factory brake components on select GM trucks and SUVs

Installation Notes and Tips

Ensure the rotor surface is clean and free of any protective coatings before installation. Verify that the rotor thickness meets or exceeds the nominal thickness of 30 mm to maintain safe braking performance. Use proper torque specifications for the 6-lug wheel studs and confirm the rotor is mounted floating as designed to allow for thermal expansion. This rotor does not include bearings or ABS tone rings, so reuse existing components if applicable. Professional installation is recommended to ensure proper fitment and brake system function.

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for durability and performance. Each rotor undergoes strict quality control to ensure dimensional accuracy and material integrity. 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 the manufacturer for exact warranty terms.