Centric 121.34022 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.34022

The Centric C-TEK Standard Disc Brake Rotor 121.34022 is engineered for reliable braking performance on BMW 735i and 735iL models. Designed as a solid rotor with a smooth surface, it meets the specifications required for these vehicles, ensuring consistent stopping power and durability.

• Compatible with BMW 735i and 735iL models
• Part number 121.34022 for precise identification
• Solid disc brake rotor with smooth surface finish
• Nominal thickness of 0.469 inches (11.900 mm) and discard thickness of 0.409 inches (10.400 mm)
• Outside diameter of 11.811 inches (300.000 mm)
• Overall height of 2.681 inches (68.100 mm)
• Five stud/lug holes with 0.591 inch (15.000 mm) diameter
• Center hole diameter of 2.953 inches (75.000 mm)
• Mounting bolt hole circle diameter of 120.000 mm (4.724 inches)
• Weight approximately 11.95 lbs (5.43 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet OEM specifications for a wide range of vehicles. This product line focuses on providing solid rotors with smooth surfaces that deliver consistent braking performance and durability. The 121.34022 rotor is part of this line, engineered specifically for BMW 735i and 735iL models, ensuring proper fitment and reliable operation.

Detailed Product Description

This Centric disc brake rotor features a solid design with a smooth surface type, which is typical for standard replacement rotors. The nominal thickness of 0.469 inches (11.900 mm) and discard thickness of 0.409 inches (10.400 mm) provide clear service limits for maintenance. The rotor’s outside diameter measures 11.811 inches (300.000 mm), and it has an overall height of 2.681 inches (68.100 mm), matching the original equipment specifications for the BMW 735i and 735iL. The rotor includes five stud/lug holes with a diameter of 0.591 inches (15.000 mm) and a mounting bolt hole circle diameter of 120.000 mm (4.724 inches), ensuring proper alignment and secure installation. This rotor does not include an ABS tone ring or bearings, consistent with the original design for these models.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on BMW 735i and 735iL
• Restores braking performance affected by rotor thickness below discard limits
• Eliminates brake pulsation caused by uneven rotor surfaces
• Addresses noise and vibration issues related to rotor wear
• Ensures proper rotor dimensions for safe and effective braking

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 0.409 inches (10.400 mm)
• Ensure mounting surfaces are clean and free of debris for proper fitment
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check compatibility with existing brake pads and hardware
• Perform a test drive to confirm braking performance after installation

Quality Assurance and Warranty

Centric provides rotors manufactured to meet or exceed OEM standards, ensuring consistent quality and performance. The C-TEK Standard Disc Brake Rotors line undergoes rigorous testing for durability and fitment accuracy. While specific warranty details for part number 121.34022 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship.