Centric 121.66059 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet and GMC Trucks

The Centric C-TEK Standard Disc Brake Rotor 121.66059 is engineered for heavy-duty performance on Chevrolet and GMC trucks. Designed specifically for models like the Silverado 2500 HD and Sierra 3500, this vented rotor ensures consistent braking under demanding conditions.

• Vented disc brake rotor with smooth surface for effective heat dissipation
• Nominal thickness of 1.488 inches (37.8 mm) and discard thickness of 1.437 inches (36.5 mm)
• Overall height of 3.516 inches (89.3 mm) and outside diameter of 12.78 inches (324.6 mm)
• Floating disc mounting with straight vane style for optimized airflow
• Compatible with 8 stud/lug holes, each 0.646 inches (16.4 mm) in diameter
• Center hole diameter of 4.654 inches (118.2 mm) and mounting bolt hole circle diameter of 6.5 inches (165.1 mm)
• Weight approximately 29.65 lbs (13.48 kgs) for balanced performance

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers reliable, OEM-quality replacement rotors designed to meet factory specifications. This product line focuses on providing solid and vented rotors with precise dimensions and consistent surface finishes, ensuring proper fitment and dependable braking performance for Chevrolet and GMC heavy-duty trucks.

Product Details and Specifications

This Centric disc brake rotor features a vented design with straight vanes to enhance cooling and reduce brake fade during extended use. The smooth surface type supports even pad wear and quiet operation. With a floating disc mounting style, the rotor allows slight movement to accommodate thermal expansion and improve braking consistency. The rotor’s dimensions, including a 12.78-inch outside diameter and 3.516-inch overall height, are tailored for compatibility with Chevrolet Avalanche 2500, Express 2500/3500, Savana 2500/3500, Sierra 2500 HD/3500, and Silverado 2500 HD/3500 models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise issues from uneven rotor surfaces
• Improving heat dissipation to prevent brake fade on heavy-duty trucks
• Ensuring proper fitment for Chevrolet and GMC 2500 and 3500 series trucks

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match your vehicle’s specifications before installation
• Ensure hub surface is clean and free of rust to prevent rotor runout
• Torque lug nuts to manufacturer specifications to avoid rotor distortion
• Check brake pads for wear and replace if necessary during rotor installation
• Perform a bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring durability and consistent performance. While specific warranty details for part number 121.66059 are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.