Centric 121.62176 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Buick, Chevrolet, and GMC Models

The Centric C-TEK Standard Disc Brake Rotor 121.62176 is engineered to provide consistent braking performance for select Buick, Chevrolet, and GMC vehicles. Designed specifically for models like the Envision, Equinox, LaCrosse, Regal Sportback, Regal TourX, and Terrain, this rotor meets precise fitment and durability requirements.

• Part Number: 121.62176
• Compatible with Buick Envision, Chevrolet Equinox, LaCrosse, Regal Sportback, Regal TourX, and GMC Terrain
• Vented disc brake rotor with smooth surface for effective heat dissipation
• Nominal thickness of 1.102 inches (28.000 mm) and discard thickness of 1.024 inches (26.000 mm)
• Overall height of 1.799 inches (45.700 mm) and outside diameter of 12.638 inches (321.000 mm)
• Floating disc mounting with 5 stud/lug holes, each 0.547 inches (13.900 mm) in diameter
• OEM vane count of 39 with straight vane style for optimized airflow

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for fit, form, and function. This product line focuses on providing reliable braking components with precise engineering, including vented rotors that help maintain optimal operating temperatures. The 121.62176 rotor is part of this line, ensuring compatibility and performance for the specified Buick, Chevrolet, and GMC models.

Technical Specifications and Features

This vented disc brake rotor features a smooth surface type that supports consistent pad contact and braking efficiency. The rotor’s nominal thickness is 1.102 inches (28.000 mm), with a discard thickness of 1.024 inches (26.000 mm), indicating when replacement is necessary to maintain safety. The overall height measures 1.799 inches (45.700 mm), and the outside diameter is 12.638 inches (321.000 mm), matching OEM dimensions for proper fitment.

The rotor includes a floating disc mounting design and 5 stud/lug holes with a diameter of 0.547 inches (13.900 mm), arranged on a mounting bolt hole circle diameter of 4.528 inches (115.000 mm). It has a center hole diameter of 2.783 inches (70.700 mm) and a hat ID of 6.244 inches (158.600 mm). The rotor weighs approximately 21.3 lbs (9.66 kgs), balancing durability and performance.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation or noise
• Restores braking performance on Buick Envision, Chevrolet Equinox, LaCrosse, Regal Sportback, Regal TourX, and GMC Terrain
• Addresses rotor thickness below discard limits to maintain safe braking
• Improves heat dissipation to reduce brake fade during extended use
• Ensures proper fitment and alignment with OEM mounting specifications

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is above the discard thickness specification of 1.024 inches (26.000 mm). Use proper torque specifications for the 5 lug nuts to avoid rotor warping. This rotor does not include bearings or an ABS tone ring, so confirm compatibility with your vehicle’s braking system. Always inspect related brake components such as pads and calipers during installation.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards and OEM specifications. While specific warranty details are not provided here, Centric products typically come with a limited warranty against defects in materials and workmanship. For detailed warranty information, refer to Centric’s official documentation or contact the manufacturer directly.