Centric 121.66044 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Chevrolet and GMC Trucks

The Centric C-TEK Standard Disc Brake Rotor 121.66044 is engineered to meet the braking demands of heavy-duty Chevrolet and GMC vehicles. Designed for models like the Silverado 2500 HD and Sierra 3500, this vented rotor ensures consistent performance under load.

• Vented disc brake rotor with smooth surface for effective heat dissipation
• Nominal thickness of 1.142 inches (29.000 mm) with discard thickness at 1.063 inches (27.000 mm)
• Outside diameter measures 12.992 inches (330.000 mm) for precise fitment
• Overall height of 3.673 inches (93.300 mm) supports proper rotor alignment
• Eight stud/lug holes with 0.650 inch (16.500 mm) diameter for secure mounting
• Floating disc mounting design with straight vane style for improved cooling
• Compatible with Chevrolet Avalanche 2500, Express 2500/3500, GMC Sierra and Yukon XL 2500 series

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a balance of durability and performance tailored for heavy-duty applications. This product line focuses on providing rotors with vented designs and smooth surfaces to maintain consistent braking efficiency and heat management. The 121.66044 rotor exemplifies these qualities, making it suitable for demanding Chevrolet and GMC truck models.

Technical Details and Specifications

This vented rotor features a nominal thickness of 1.142 inches (29.000 mm) and a discard thickness of 1.063 inches (27.000 mm), ensuring it meets wear limits for safe operation. The outside diameter of 12.992 inches (330.000 mm) and overall height of 3.673 inches (93.300 mm) provide a precise fit for the specified vehicles. The rotor includes eight lug holes with a diameter of 0.650 inches (16.500 mm) arranged on a 6.500 inch (165.100 mm) bolt circle diameter. The floating disc mounting and straight vane style enhance heat dissipation during braking, reducing the risk of brake fade under heavy loads.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet Silverado 2500 HD and GMC Sierra 3500
• Improves braking performance on heavy-duty trucks used for towing or hauling
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Restores proper rotor thickness to maintain safe braking distances
• Prevents overheating and brake fade during extended use

Installation Notes and Tips

Ensure the rotor is compatible with your specific Chevrolet or GMC model before installation. Clean the hub surface to remove rust or debris for proper rotor seating. Use a calibrated torque wrench to tighten lug nuts to manufacturer specifications. Inspect brake pads and replace if worn to optimize rotor performance. Since this rotor does not include bearings or an ABS tone ring, verify compatibility with your vehicle’s braking system.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms related to part number 121.66044.