Centric 121.66011 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66011

The Centric C-TEK Standard Disc Brake Rotor 121.66011 is engineered for reliable braking performance on Chevrolet and GMC C1500 trucks. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking under various driving conditions.

• Compatible with Chevrolet and GMC C1500 models
• Part number 121.66011 for precise identification
• Vented disc brake rotor with straight vane design
• Nominal thickness of 1.280 inches (32.5 mm) and discard thickness of 1.215 inches (30.86 mm)
• Overall diameter of 11.614 inches (295 mm) and overall height of 4.508 inches (114.5 mm)
• 5 lug holes with 14 mm stud thread diameter and 1.5 mm bolt thread pitch
• Center hole diameter of 3.059 inches (77.7 mm) for proper hub fitment
• Surface type: smooth, designed for even pad contact

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.66011 is a vented rotor featuring a straight vane design that promotes effective heat dissipation during braking. The rotor’s nominal thickness of 1.280 inches (32.5 mm) ensures durability and long service life, while the discard thickness of 1.215 inches (30.86 mm) indicates the minimum safe thickness before replacement is necessary. With an outside diameter of 11.614 inches (295 mm) and an overall height of 4.508 inches (114.5 mm), this rotor is engineered to fit Chevrolet and GMC C1500 trucks precisely. The smooth surface type provides consistent pad contact, reducing uneven wear and brake noise. The rotor mounts using a 5-lug pattern with 14 mm stud thread diameter and a 1.5 mm bolt thread pitch, ensuring secure installation.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to offer dependable, OEM-quality replacement rotors for a wide range of vehicles. This product line focuses on delivering rotors that meet or exceed factory specifications, providing consistent braking performance and durability. The 121.66011 rotor is part of this line, offering a vented design and precise fitment for Chevrolet and GMC C1500 trucks, making it a practical choice for maintaining vehicle safety and performance.

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
• Eliminates brake noise caused by uneven rotor surfaces
• Improves heat dissipation to prevent brake fade during heavy use
• Ensures proper fitment for Chevrolet and GMC C1500 brake systems

Installation Notes and Tips

• Verify rotor part number 121.66011 matches vehicle specifications before installation
• Inspect hub and bearing components (inner bearing 410.91005, outer bearing 410.91003) for wear during rotor replacement
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check brake pads for wear and replace if necessary to maintain optimal braking performance

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.66011 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship. This rotor is engineered to provide consistent braking performance for Chevrolet and GMC C1500 trucks when installed and maintained properly.