Stoptech 128.66056R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.66056R is engineered for reliable braking performance on Chevrolet, GMC, and Isuzu trucks. Designed specifically for models like the Chevrolet Colorado and GMC Canyon, this rotor offers enhanced heat dissipation and consistent stopping power.

• Cross-drilled surface for improved heat dissipation and brake pad bite
• Vented rotor design to reduce brake fade during heavy use
• Coated hat finish to resist corrosion and extend rotor life
• Compatible with 6 mounting bolt holes and 1.250 bolt thread pitch
• Fits Chevrolet Canyon, Colorado, GMC Canyon, and Isuzu i-280, i-290, i-350, i-370 models

Detailed Product Features and Specifications

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through advanced rotor technology. This particular rotor, part number 128.66056R, features a cross-drilled surface type that helps dissipate heat more efficiently, reducing the risk of brake fade during demanding driving conditions. The vented rotor design with straight vanes improves airflow, further aiding in temperature control. The rotor has a coated hat finish that protects against rust and corrosion, ensuring durability over time.

Key dimensions include an outside diameter of 280 mm (11.024 inches), an overall height of 39.9 mm (1.571 inches), and a nominal thickness of 26.9 mm (1.059 inches). The discard thickness is specified at 25.6 mm (1.008 inches), indicating when the rotor should be replaced. The rotor mounts behind the hub and uses a 6-bolt pattern with a 112 mm (4.409 inches) bolt circle diameter and 12 mm mounting bolt hole diameter. The center hole diameter measures 92.1 mm (3.626 inches). This rotor weighs approximately 6.82 kg (15 lbs), balancing strength and weight for optimal performance.

Compatible Vehicles and Applications

• Chevrolet Canyon and Colorado models
• GMC Canyon
• Isuzu i-280, i-290, i-350, and i-370 trucks

This rotor is designed specifically for these vehicles, ensuring proper fitment and reliable braking performance.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during towing or heavy braking
• Corrosion and rust on rotor surfaces reducing braking efficiency
• Uneven brake pad wear due to poor heat dissipation
• Vibration or noise from warped or worn rotors
• Reduced stopping power in demanding driving conditions

Installation Notes and Tips

When installing the StopTech Sport Cross-Drilled Disc Brake Rotor 128.66056R, ensure the rotor is mounted behind the hub as specified. Verify the 6-bolt mounting pattern and bolt thread pitch of 1.250 to match your vehicle’s specifications. It is recommended to inspect brake pads and hardware during installation and replace if necessary. Proper torque specifications should be followed to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, confirm compatibility with your vehicle’s braking system components.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details for part number 128.66056R are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. For exact warranty terms, consult the product documentation or manufacturer.