Centric 121.66025 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet and GMC Vehicles

The Centric C-TEK Standard Disc Brake Rotor 121.66025 is engineered to provide consistent braking performance for select Chevrolet and GMC models. Designed with precision, this vented rotor ensures effective heat dissipation and smooth braking under various driving conditions.

• Compatible with Chevrolet C1500, C1500 Suburban, Silverado, Tahoe, and GMC Yukon, Express 1500, Savana 1500
• Part number 121.66025 for accurate fitment
• Vented rotor design with straight vane style for improved cooling
• Includes ABS tone ring for seamless integration with ABS systems
• Nominal thickness of 1.287 inches (32.700 mm) and discard thickness of 1.215 inches (30.860 mm)
• Overall diameter of 11.614 inches (295.000 mm) and overall height of 4.508 inches (114.500 mm)
• 5 stud/lug holes with 14 mm stud thread diameter and 1.5 mm bolt thread pitch
• Center hole diameter of 3.059 inches (77.700 mm) and mounting bolt hole circle diameter of 5 inches (127.000 mm)
• Solid smooth surface type for consistent pad contact
• Weight approximately 27.5 lbs (12.5 kgs)

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 everyday driving needs. These rotors are manufactured to meet or exceed OEM specifications, providing reliable stopping power and durability. The 121.66025 rotor is part of this line, featuring vented construction and an integrated ABS tone ring to maintain proper ABS functionality on compatible Chevrolet and GMC trucks and SUVs.

Technical 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 smooth surface finish ensures even brake pad wear and consistent braking performance. With a nominal thickness of 1.287 inches and a discard thickness of 1.215 inches, this rotor maintains safety standards by indicating when replacement is necessary. The rotor’s 5-lug configuration with a 14 mm stud thread diameter and 1.5 mm bolt thread pitch matches factory specifications for secure mounting. Additionally, the included ABS tone ring supports proper ABS sensor operation on Chevrolet C1500, Silverado, Tahoe, and GMC Yukon, Express 1500, and Savana 1500 models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation or noise
• Restores proper braking performance on Chevrolet and GMC trucks and SUVs
• Addresses ABS sensor issues related to damaged or missing tone rings
• Improves heat management to reduce brake fade during towing or heavy loads
• Ensures safe stopping distances by maintaining OEM thickness specifications

Installation Notes and Tips

Ensure the rotor surface is clean and free of rust or debris before installation. Verify the rotor thickness is above the discard limit of 1.215 inches to maintain safety. Use proper torque specifications for the 5 lug nuts with 14 mm stud diameter and 1.5 mm thread pitch. Confirm ABS tone ring alignment with the vehicle’s ABS sensor for accurate system operation. This rotor mounts to the hub and rotor assembly, so inspect related bearings and seals (Centric inner bearing 410.91005 and outer bearing 410.91003, inner seal 417.66004) for wear during replacement.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 121.66025 rotor undergoes strict quality control processes to maintain consistent dimensions and material integrity. 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.