Centric 121.66061 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66061

The Centric C-TEK Standard Disc Brake Rotor 121.66061 is engineered for reliable braking performance on select GM vehicles. Designed specifically for Buick Montana, Chevrolet Relay, Pontiac Terraza, and Saturn Uplander models, this vented rotor ensures consistent heat dissipation and smooth braking response.

• Vented disc brake rotor with pillar vane design for improved cooling
• Nominal thickness of 1.268 inches (32.2 mm) and discard thickness of 1.209 inches (30.7 mm)
• Overall height of 2.055 inches (52.2 mm) and outside diameter of 11.693 inches (297 mm)
• Floating disc mounting with 6 lug holes (0.563 inch diameter) on a 4.5 inch bolt circle
• Center hole diameter of 2.787 inches (70.8 mm) and three additional miscellaneous holes
• Solid smooth surface type without ABS tone ring included
• Weight approximately 18.4 lbs (8.36 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 conditions. These rotors are designed to meet or exceed OEM specifications, providing consistent braking performance and durability. The 121.66061 rotor features a vented design with pillar-style vanes to enhance heat dissipation, reducing the risk of brake fade during extended use on vehicles like the Buick Montana and Chevrolet Relay.

Detailed Product Description

This Centric disc brake rotor is a vented type with a smooth surface finish, optimized for vehicles requiring a floating disc mounting system. The rotor’s nominal thickness of 1.268 inches ensures structural integrity, while the discard thickness of 1.209 inches indicates the minimum safe thickness before replacement is necessary. The rotor’s overall height and outside diameter are engineered to fit precisely on compatible GM models, ensuring proper alignment and braking efficiency. The six lug holes on a 4.5-inch bolt circle accommodate standard wheel mounting, and the absence of an ABS tone ring means it is intended for vehicles without ABS sensor integration on the rotor.

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 dissipation on Buick Montana and Pontiac Terraza
• Ensuring proper fitment and compatibility with Chevrolet Relay and Saturn Uplander brake systems

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets nominal specifications
• Clean rotor surface and hub mounting area to prevent uneven wear or noise
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle’s brake caliper and mounting hardware
• Inspect brake pads and replace if worn to maintain optimal braking performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.66061 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product documentation or Centric directly for warranty terms applicable to this rotor.