Centric 121.62136 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.62136

The Centric C-TEK Standard Disc Brake Rotor 121.62136 is engineered for reliable braking performance on Cadillac ATS and CT4 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and stable stopping power under various driving conditions.

• Compatible with Cadillac ATS and CT4 vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 11.811 inches (300 mm) for precise fitment
• Nominal thickness of 1.024 inches (26 mm) with discard thickness at 0.906 inches (23 mm)
• Floating disc mounting with straight vane style for efficient airflow
• 5 lug holes with a 4.5 inch (114.3 mm) bolt circle diameter
• Center hole diameter of 2.787 inches (70.8 mm) for accurate hub alignment
• Weight approximately 19.9 lbs (9.04 kgs) ensuring balanced rotor mass
• Does not include ABS tone ring or bearings

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric focuses on delivering dependable, OE-quality replacement rotors. This product line emphasizes precise manufacturing tolerances and consistent material quality to meet or exceed factory specifications. The 121.62136 rotor benefits from this approach, providing a direct replacement solution for Cadillac ATS and CT4 models that require vented rotors with smooth surfaces and floating disc mounting.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes that promote effective heat dissipation, reducing the risk of brake fade during extended use. The smooth surface finish ensures even pad contact and wear. With a nominal thickness of 1.024 inches (26 mm) and a discard thickness of 0.906 inches (23 mm), this rotor maintains structural integrity throughout its service life. The overall height measures 2.406 inches (61.1 mm), and the rotor mounts using a 5-lug pattern with a 4.5 inch (114.3 mm) bolt circle diameter, matching the OEM specifications for Cadillac ATS and CT4 vehicles. The floating disc mounting design allows for slight rotor movement, which can help reduce stress and improve braking consistency.

Common Applications and Problem Resolution

• Replacement for worn or warped rotors on Cadillac ATS and CT4
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat management to prevent brake fade during heavy braking
• Restores proper rotor thickness to maintain braking efficiency
• Eliminates noise and vibration related to damaged or out-of-spec rotors

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify that the rotor thickness is within the discard limits specified (minimum 0.906 inches or 23 mm). Use proper torque specifications for the 5 lug nuts on the 4.5 inch bolt circle to avoid rotor distortion. Since this rotor does not include bearings or an ABS tone ring, confirm compatibility with your vehicle’s existing components. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring consistent quality and durability. While specific warranty details for part number 121.62136 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.