Centric 121.50028 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Hyundai and Kia Vehicles

The Centric C-TEK Standard Disc Brake Rotor 121.50028 offers dependable braking performance for select Hyundai and Kia models. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking under various driving conditions.

• Compatible with Hyundai Azera, Sonata, Nexo, and Kia Cadenza, Optima, Sportage, Tucson
• Part number 121.50028 for precise fitment
• Vented rotor design with straight vane style for improved cooling
• Nominal thickness of 1.102 inches (28.000 mm) and discard thickness of 1.039 inches (26.400 mm)
• Overall height of 1.870 inches (47.500 mm) and outside diameter of 12.598 inches (320.000 mm)
• Floating disc mounting with 5 lug holes (0.484 inch diameter) on a 4.500 inch bolt circle diameter
• Smooth surface type for consistent pad contact

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is engineered to provide reliable, OEM-quality replacement rotors. This product line focuses on delivering rotors that meet factory specifications for fit, form, and function. The 121.50028 rotor exemplifies this approach with its vented design and precise dimensions, ensuring compatibility and performance for Hyundai and Kia vehicles requiring standard replacement rotors.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to enhance airflow and heat dissipation during braking. The nominal thickness of 1.102 inches (28.000 mm) ensures durability, while the discard thickness of 1.039 inches (26.400 mm) indicates the minimum safe thickness before replacement is necessary. The rotor’s overall height measures 1.870 inches (47.500 mm), and it has an outside diameter of 12.598 inches (320.000 mm), matching OEM dimensions for proper fitment.

The rotor mounts using a floating disc mounting system and includes 5 stud/lug holes with a diameter of 0.484 inches (12.300 mm) arranged on a 4.500 inch (114.300 mm) bolt circle diameter. The center hole diameter is 2.717 inches (69.000 mm), and the hat ID measures 5.697 inches (144.700 mm). This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation or noise
• Restores proper braking performance on Hyundai Azera, Sonata, Nexo, and Kia Cadenza, Optima, Sportage, Tucson
• Addresses rotor thickness below discard limits to maintain safety
• Improves heat dissipation to reduce brake fade during extended use
• Ensures smooth braking surface for consistent pad contact and wear

Installation Notes and Tips

• Verify compatibility with vehicle make and model before installation
• Inspect hub and mounting surfaces for cleanliness and damage
• Check rotor thickness with a micrometer to confirm discard limits
• Use proper torque specifications on lug nuts to avoid rotor warping
• Replace brake pads simultaneously for optimal braking performance

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. While specific warranty details for part number 121.50028 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or manufacturer resources for exact warranty terms.