Centric 121.66053 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Select GM and Isuzu Models

The Centric C-TEK Standard Disc Brake Rotor 121.66053 offers dependable braking performance for a range of vehicles including Buick, Chevrolet, GMC, Isuzu, and Saab models. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking response.

• Part Number: 121.66053
• Compatible with Buick, Chevrolet, GMC, Isuzu, and Saab vehicles
• Vented disc brake rotor with smooth surface type
• Outside diameter: 12.795 inches (325 mm)
• Nominal thickness: 1.142 inches (29 mm); discard thickness: 1.083 inches (27.5 mm)
• Overall height: 2.138 inches (54.3 mm)
• Floating disc mounting with 6 lug holes (0.512 inch diameter)
• Weight approximately 22.5 lbs (10.23 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is engineered to provide reliable, OEM-quality replacement rotors for a variety of vehicles. This product line focuses on delivering rotors with precise dimensions and consistent performance characteristics, such as vented design for improved cooling and smooth surface finish to reduce brake pad wear. The 121.66053 rotor is part of this line, ensuring compatibility and durability for your vehicle's braking system.

Detailed Product Description

This Centric disc brake rotor features a vented design with straight vanes to enhance airflow and heat dissipation during braking. The smooth surface type helps maintain even pad contact and reduces noise. With a floating disc mounting and two miscellaneous holes, this rotor is designed for secure installation and optimal performance. The rotor measures 12.795 inches in outside diameter and has a nominal thickness of 1.142 inches, with a discard thickness of 1.083 inches, indicating when replacement is necessary. The overall height is 2.138 inches, and it includes six lug holes with a diameter of 0.512 inches, suitable for vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency on Buick 9-7x and Chevrolet SSR models
• Eliminates noise and vibration from uneven rotor surfaces
• Improves heat dissipation for GMC Envoy XL and Isuzu Ascender
• Compatible with Saab models requiring vented disc rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surface to prevent rotor runout
• Use proper torque specifications for lug nuts (6 lug holes, 0.512 inch diameter)
• Check for ABS tone ring compatibility; this rotor does not include one
• Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, providing consistent quality and durability. While specific warranty details for part number 121.66053 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship to ensure customer confidence in their braking components.