Centric 121.40057 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.40057

The Centric C-TEK Standard Disc Brake Rotor 121.40057 is engineered for reliable braking performance on select Acura and Honda vehicles. Designed to meet OEM specifications, this vented rotor provides consistent stopping power for models like the Honda Civic, CR-V, CSX, ILX, and Acura RSX.

• Part Number: 121.40057
• Compatible with Acura and Honda models including Civic, CR-V, CSX, ILX, and RSX
• Vented disc brake rotor with smooth surface finish
• Outside diameter: 11.811 inches (300 mm)
• Nominal thickness: 0.984 inches (25 mm); discard thickness: 0.906 inches (23 mm)
• Overall height: 1.854 inches (47.1 mm)
• Floating disc mounting with 5 lug holes (0.492 inches diameter)
• Center hole diameter: 2.528 inches (64.2 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• Weight approximately 15 lbs (6.82 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to provide dependable, direct replacement rotors that meet or exceed OEM standards. This product line focuses on delivering rotors with precise fitment and consistent performance, making it suitable for routine maintenance and brake system repairs on Acura and Honda vehicles. The 121.40057 rotor exemplifies this line’s commitment to quality and durability with its vented design and smooth surface finish.

Product Details and Specifications

This Centric disc brake rotor features a vented design with straight vanes to enhance heat dissipation during braking, reducing the risk of brake fade. The smooth surface type ensures even pad contact and wear. With a nominal thickness of 0.984 inches (25 mm) and a discard thickness of 0.906 inches (23 mm), this rotor maintains structural integrity throughout its service life. The overall height of 1.854 inches (47.1 mm) and precise mounting dimensions, including a 5-lug hole pattern and floating disc mounting, ensure proper installation and compatibility with specified Acura and Honda models.

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
• Improving braking performance on Acura RSX, Honda Civic, CR-V, CSX, and ILX
• Upgrading to OEM-spec vented rotors for better heat management

Installation Notes and Tips

Ensure the rotor surface is clean and free of rust or debris before installation. Verify the rotor thickness is within discard limits to maintain safety and performance. Use proper torque specifications for lug nuts and mounting bolts to avoid rotor warping. This rotor does not include bearings or an ABS tone ring, so confirm compatibility with your vehicle’s braking system. Professional installation is recommended for accurate fitment and optimal brake function.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 121.40057 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.