Centric 121.66008 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet and GMC K1500

The Centric C-TEK Standard Disc Brake Rotor 121.66008 is engineered to provide consistent braking performance for Chevrolet and GMC K1500 models. Designed with precision, this vented rotor ensures effective heat dissipation and durability under demanding driving conditions.

• Compatible with Chevrolet and GMC K1500 vehicles
• Part number 121.66008 for accurate fitment
• Vented disc design with straight vane style for improved cooling
• Nominal thickness of 1.035 inches (26.3 mm) and discard thickness of 0.963 inches (24.46 mm)
• Overall height of 2.433 inches (61.8 mm) and outside diameter of 11.610 inches (294.9 mm)
• Floating disc mounting and smooth surface type
• Six stud/lug holes with 0.618 inch (15.7 mm) diameter

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 replacement needs. These rotors are designed to meet or exceed OEM specifications, providing reliable braking performance without unnecessary features. The 121.66008 rotor fits within this line, delivering consistent stopping power and durability for Chevrolet and GMC K1500 trucks.

Product Details and Specifications

This disc brake rotor features a vented design with straight vanes that promote efficient heat dissipation, reducing the risk of brake fade during extended use. The rotor’s nominal thickness is 1.035 inches (26.3 mm), with a discard thickness of 0.963 inches (24.46 mm), ensuring a clear service life indicator. The overall height measures 2.433 inches (61.8 mm), and the outside diameter is 11.610 inches (294.9 mm), matching OEM dimensions for proper fitment. The rotor mounts using a floating disc mounting system and includes six stud/lug holes sized at 0.618 inches (15.7 mm) diameter. This rotor does not include an ABS tone ring or bearings and features a smooth braking surface for consistent pad contact.

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 or vibration issues related to rotor surface irregularities
• Upgrading to a vented rotor for improved heat management in heavy-duty use
• Ensuring proper fitment and compatibility with Chevrolet and GMC K1500 brake systems

Installation Notes and Tips

When installing the Centric C-TEK Standard Disc Brake Rotor 121.66008, ensure the rotor surface is clean and free of any contaminants before mounting. Verify the rotor thickness is above the discard limit of 0.963 inches (24.46 mm) to maintain safe braking performance. Use proper torque specifications for the six lug holes to avoid warping. Since this rotor does not include bearings or an ABS tone ring, reuse existing components or replace separately as needed. It is recommended to inspect brake pads and hardware during installation for optimal system performance.

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 121.66008 should be confirmed at the point of purchase, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide consistent braking performance for Chevrolet and GMC K1500 vehicles when installed and maintained properly.