Centric 121.66012 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet and GMC C2500

The Centric C-TEK Standard Disc Brake Rotor 121.66012 is engineered to meet the braking demands of Chevrolet and GMC C2500 trucks. Designed with precision, this vented rotor ensures consistent performance and durability under various driving conditions.

• Compatible with Chevrolet and GMC C2500 models
• Part number 121.66012 for exact fitment
• Vented rotor design for improved heat dissipation
• Nominal thickness of 1.283 inches (32.600 mm) with discard thickness at 1.215 inches (30.860 mm)
• Overall height of 4.512 inches (114.600 mm) and outside diameter of 11.614 inches (295.000 mm)
• 6 stud/lug holes with 14 mm stud thread diameter and 1.5 mm bolt thread pitch
• Smooth surface type for consistent pad contact
• Hub and rotor disc mounting for secure installation

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a balance of quality and value for standard braking applications. These rotors are designed to meet OEM specifications, providing reliable stopping power and durability. The vented design of this rotor helps reduce heat buildup, which can improve brake life and performance on Chevrolet and GMC C2500 trucks.

Detailed Product Description

This Centric disc brake rotor features a vented construction with straight vanes to enhance airflow and cooling during braking. The rotor's nominal thickness of 1.283 inches (32.600 mm) ensures structural integrity, while the discard thickness of 1.215 inches (30.860 mm) indicates the minimum safe thickness for replacement. The smooth surface finish promotes even brake pad wear and consistent braking performance. With a 6-lug hole pattern and a mounting bolt hole circle diameter of 5.5 inches (139.700 mm), this rotor fits securely on the hub and rotor assembly. The overall height of 4.512 inches (114.600 mm) and outside diameter of 11.614 inches (295.000 mm) are designed to match factory specifications for the Chevrolet and GMC C2500.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency lost due to rotor thickness below discard limits
• Addresses noise and vibration issues from uneven rotor surfaces
• Improves heat dissipation to reduce brake fade during heavy use
• Ensures proper fitment for Chevrolet and GMC C2500 brake systems

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with existing brake pads and hardware
• Inspect bearings and seals (Centric inner bearing 410.91005 and outer bearing 410.91003 recommended) during installation

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric's official warranty policy for complete information.