Centric 121.34042 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.34042

The Centric C-TEK Standard Disc Brake Rotor 121.34042 is engineered for reliable braking performance on BMW 750iL models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with BMW 750iL vehicles
• Part number 121.34042 for precise identification
• Vented disc brake rotor design for improved cooling
• Nominal thickness of 1.260 inches (32.000 mm)
• Discard thickness at 1.197 inches (30.400 mm)
• Outside diameter measures 13.150 inches (334.000 mm)
• Overall height of 3.035 inches (77.100 mm)
• Floating disc mounting with straight vane style for efficient airflow
• Five stud/lug holes with 0.575 inch (14.600 mm) diameter
• Does not include ABS tone ring or bearings

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor (part number 121.34042) is specifically designed for the BMW 750iL, ensuring proper fitment and optimal braking performance. The rotor features a vented design with straight vanes that promote effective heat dissipation, reducing the risk of brake fade during extended use. The smooth surface finish supports consistent pad contact and wear. With a nominal thickness of 1.260 inches and a discard thickness of 1.197 inches, this rotor meets OEM specifications for thickness tolerances. The outside diameter of 13.150 inches and overall height of 3.035 inches provide the correct dimensions for proper installation and operation. The floating disc mounting and five lug holes with a 4.724 inch bolt circle diameter ensure secure attachment to the vehicle hub.

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 components with precise engineering, including vented rotor designs for improved thermal management. The 121.34042 rotor is part of this line, delivering consistent performance tailored for BMW 750iL applications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 750iL
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking consistency by restoring proper rotor thickness
• Helps reduce brake fade during prolonged braking
• Resolves noise issues related to rotor surface irregularities

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets discard specifications
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications on lug nuts for secure mounting
• Check compatibility with existing brake pads and hardware
• Inspect related components such as bearings and ABS sensors, noting this rotor does not include bearings or ABS tone ring

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality control standards, ensuring durability and performance. While specific warranty details are not provided here, Centric products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or manufacturer resources for complete warranty information.