Centric 121.42004 Disc Brake Rotor - Front

Reliable Centric C-TEK Standard Disc Brake Rotor Overview

The Centric C-TEK Standard Disc Brake Rotor 121.42004 offers a solid and smooth braking surface designed for consistent performance. Engineered for vehicles requiring a 4-bolt mounting pattern, this rotor provides dependable stopping power with precise fitment specifications.

• Part Number: 121.42004
• Brand Line: C-TEK Standard Disc Brake Rotors
• Outside Diameter: 10.669 inches (271.000 mm)
• Nominal Thickness: 0.492 inches (12.500 mm)
• Discard Thickness: 0.413 inches (10.500 mm)
• Overall Height: 1.713 inches (43.500 mm)
• Mounting Bolt Hole Quantity: 4
• Mounting Bolt Hole Diameter: 0.413 inches (10.500 mm)
• Mounting Bolt Hole Circle Diameter: 4.055 inches (103.000 mm)
• Center Hole Diameter: 3.189 inches (81.000 mm)
• Surface Type: Smooth
• Rotor Type: Solid Disc
• ABS Tone Ring: Not Included
• Weight: 12.2 lbs (5.55 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet OEM specifications for standard braking applications. This product line focuses on providing rotors with precise dimensions and smooth surfaces to ensure proper pad contact and consistent braking performance. The 121.42004 rotor is part of this line, offering a solid rotor design suitable for vehicles that do not require vented rotors or ABS tone rings.

Detailed Product Description and Specifications

The Centric 121.42004 disc brake rotor features a solid construction with a smooth surface type, optimized for vehicles that require a 4-bolt mounting pattern behind the hub. With an outside diameter of 10.669 inches and a nominal thickness of 0.492 inches, this rotor maintains structural integrity and heat dissipation suitable for standard driving conditions. The discard thickness of 0.413 inches indicates the minimum thickness before replacement is necessary, helping maintain safe braking performance. The overall height of 1.713 inches ensures compatibility with specific caliper designs. This rotor does not include an ABS tone ring or bearings, so it is intended for vehicles without ABS sensor integration in the rotor assembly.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Resolving uneven brake pad wear due to rotor surface imperfections
• Upgrading to OEM-spec rotors for consistent braking feel
• Eliminating brake noise caused by damaged or scored rotors

Installation Notes and Tips

Ensure the rotor mounting surface and hub are clean and free of rust or debris before installation. Verify the rotor thickness with a micrometer to confirm it meets or exceeds the nominal thickness. Use the correct torque specifications for the 4 mounting bolts to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, confirm compatibility with your vehicle’s braking system. Proper bedding-in of new rotors and pads is recommended to achieve optimal braking performance.

Quality Assurance and Warranty Information

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes strict quality control to ensure dimensional accuracy and surface finish. While specific warranty details for part number 121.42004 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms applicable to this rotor.