Centric 121.42120 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.42120

The Centric C-TEK Standard Disc Brake Rotor 121.42120 is engineered for reliable braking performance on select INFINITI and Nissan vehicles. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for models like the Nissan 370Z and INFINITI Q50.

• Vented disc brake rotor for improved cooling
• Nominal thickness of 1.102 inches (28.000 mm)
• Discard thickness at 1.024 inches (26.000 mm)
• Outside diameter of 12.591 inches (319.800 mm)
• Overall height of 1.941 inches (49.300 mm)
• Floating disc mounting design
• 5 lug holes with 0.496 inch (12.600 mm) diameter
• Compatible with ABS systems (ABS tone ring not included)
• Weight approximately 22.3 lbs (10.12 kgs)

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric focuses on providing OEM-quality replacement rotors that meet or exceed factory specifications. This product line emphasizes precise fitment and consistent braking performance, making it suitable for daily driving conditions on vehicles such as the Nissan Murano and INFINITI QX60. The 121.42120 rotor maintains the original equipment dimensions and features a vented design to help manage heat buildup during braking.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to enhance airflow and reduce brake fade. The smooth surface finish ensures even pad contact and wear. With a center hole diameter of 2.677 inches (68.000 mm) and a mounting bolt hole circle diameter of 4.5 inches (114.300 mm), it fits securely on compatible hubs. The floating disc mounting style allows for slight movement to accommodate thermal expansion and improve rotor longevity. The rotor includes five stud/lug holes, each measuring 0.496 inches (12.600 mm) in diameter, suitable for vehicles like the Nissan Pathfinder and INFINITI JX35.

Compatible Vehicles and Applications

• INFINITI 370Z, JX35, Q50, Q60, QX50, QX60, Z
• Nissan 370Z, Murano, Pathfinder

This rotor is designed to replace worn or damaged rotors on these models, restoring braking efficiency and safety.

Common Issues Addressed by This Rotor

• Brake pulsation caused by warped rotors
• Reduced braking performance due to rotor wear
• Excessive brake noise from uneven rotor surfaces
• Overheating and brake fade during extended use
• Vibration felt through the brake pedal

Installation Notes and Tips

Ensure the rotor is installed on a clean, rust-free hub surface to prevent runout. Verify the rotor thickness before installation; replace if below the discard thickness of 1.024 inches (26.000 mm). Use proper torque specifications for lug nuts and check for proper alignment with the caliper assembly. Since this rotor does not include bearings or an ABS tone ring, reuse existing components if applicable. It is recommended to replace brake pads simultaneously for optimal performance.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult product documentation or the manufacturer for complete warranty information.