Centric 121.50009 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.50009

The Centric C-TEK Standard Disc Brake Rotor 121.50009 is engineered for reliable braking performance on Kia Sorento models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Kia Sorento vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.402 inches (315 mm)
• Nominal thickness of 0.787 inches (20 mm) with discard thickness at 0.724 inches (18.4 mm)
• Solid smooth surface for consistent pad contact
• Five lug holes with 0.492 inch (12.5 mm) diameter
• Center hole diameter of 3.791 inches (96.3 mm)
• Weight approximately 20 lbs (9.09 kgs)

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor (part number 121.50009) is specifically designed for Kia Sorento models requiring a vented rotor to maintain optimal braking performance. The vented design features straight vanes that enhance airflow, helping to reduce heat buildup during braking. The rotor’s smooth surface ensures even pad wear and consistent braking response. With an outside diameter of 12.402 inches and a nominal thickness of 0.787 inches, this rotor meets OEM specifications for fit and function. The mounting bolt hole circle diameter is 5.5 inches (139.7 mm), accommodating five lug holes, each 0.492 inches in diameter, ensuring secure installation. The center hole diameter of 3.791 inches allows proper centering on the hub. This rotor does not include an ABS tone ring or bearings, so it is intended for vehicles without those integrated components.

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 standards for fit, form, and function. This product line focuses on providing reliable braking performance with quality materials and precise manufacturing. The 121.50009 rotor is part of this line, delivering consistent braking characteristics suitable for daily driving and replacement needs on Kia Sorento vehicles.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency lost due to rotor thickness below discard limits
• Eliminates noise and vibration from uneven rotor surfaces
• Improves heat dissipation to reduce brake fade during extended use
• Ensures proper rotor fitment for Kia Sorento brake systems

Installation Notes and Tips

• Verify rotor thickness before installation; discard thickness is 0.724 inches (18.4 mm)
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to maintain optimal braking performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality control standards. Each rotor undergoes precision machining and balancing to ensure consistent performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. It is recommended to consult the product packaging or Centric’s official resources for exact warranty terms.