Centric 121.99083 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.99083

The Centric C-TEK Standard Disc Brake Rotor 121.99083 is engineered for reliable braking performance in a variety of vehicle applications. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for vehicles requiring precise stopping power.

• Part Number: 121.99083
• Brand Line: C-TEK Standard Disc Brake Rotors
• Vented disc brake rotor with smooth surface finish
• Outside diameter: 12.126 inches (308.000 mm)
• Nominal thickness: 1.161 inches (29.500 mm)
• Discard thickness: 1.004 inches (25.500 mm)
• Overall height: 2.165 inches (55.000 mm)
• Center hole diameter: 2.992 inches (76.000 mm)
• Mounting bolt hole circle diameter: 120.000 mm (4.724 inches)
• 5 stud/lug holes with 0.657 inch (16.700 mm) diameter
• Floating disc mounting design
• Weight: 23.1 lbs (10.48 kgs)
• ABS tone ring not included
• Bearings not included

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 standard replacement needs. This product line focuses on delivering rotors that meet or exceed OEM specifications, featuring vented designs for improved heat management and smooth surfaces for consistent pad contact. The 121.99083 rotor is part of this line, providing dependable braking performance for compatible vehicles.

Technical Details and Specifications

This vented disc brake rotor measures 12.126 inches in outside diameter and has a nominal thickness of 1.161 inches, ensuring adequate material for effective braking and longevity. The discard thickness is 1.004 inches, indicating the minimum safe thickness before replacement is necessary. The rotor’s overall height is 2.165 inches, and it features a center hole diameter of 2.992 inches to fit the hub precisely. The mounting bolt hole circle diameter is 120 mm with five lug holes sized at 0.657 inches, designed for secure attachment. The floating disc mounting allows for slight movement to reduce stress and improve rotor life. This rotor does not include an ABS tone ring or bearings, so those components must be sourced separately if required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation in vehicles experiencing brake fade
• Restoring smooth braking surface for consistent pad contact
• Upgrading to vented rotors for enhanced cooling performance

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Ensure rotor thickness is within nominal specifications before mounting
• Clean rotor surface to remove any protective coatings or debris
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check for proper alignment of the center hole and mounting bolt holes

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.99083 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product packaging or Centric’s official documentation for exact warranty terms.