Centric 121.35039 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.35039

The Centric C-TEK Standard Disc Brake Rotor 121.35039 is engineered for reliable braking performance on select Mercedes-Benz models. Designed specifically for the CL500, S430, and S500, this vented rotor offers consistent stopping power and durability.

• Compatible with Mercedes-Benz CL500, S430, and S500
• Part number 121.35039 for precise identification
• Vented disc brake rotor with curved vane design for heat dissipation
• Nominal thickness of 0.866 inches (22.000 mm) and discard thickness of 0.764 inches (19.400 mm)
• Overall height of 2.299 inches (58.400 mm) and outside diameter of 11.811 inches (300.000 mm)
• Five stud/lug holes with 0.602 inch (15.300 mm) diameter and 4.409 inch (112.000 mm) bolt circle diameter
• Center hole diameter of 2.638 inches (67.000 mm)
• Solid mounting with floating/dih disc mounting type
• Weight approximately 15.24 lbs (6.93 kgs)

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet or exceed OEM specifications for standard replacement rotors. This product line focuses on delivering reliable braking performance with smooth surface finishes and vented rotor designs to improve heat dissipation. The 121.35039 rotor fits within this line, providing a balance of durability and consistent braking for Mercedes-Benz vehicles.

Technical Description and Specifications

This disc brake rotor features a vented design with curved vanes that enhance airflow and cooling during braking, reducing the risk of brake fade. The rotor's nominal thickness is 0.866 inches (22.000 mm), with a discard thickness of 0.764 inches (19.400 mm), ensuring safe replacement intervals. The overall height measures 2.299 inches (58.400 mm), and the outside diameter is 11.811 inches (300.000 mm), matching OEM dimensions for proper fitment. The rotor includes five stud holes with a diameter of 0.602 inches (15.300 mm) arranged on a 4.409 inch (112.000 mm) bolt circle, and a center hole diameter of 2.638 inches (67.000 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
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise or vibration issues related to rotor surface irregularities
• Upgrading to vented rotors for improved heat dissipation on Mercedes-Benz CL500, S430, and S500
• Ensuring proper rotor fitment and compatibility with OEM mounting specifications

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets nominal specifications
• Clean rotor surface and hub mounting area to prevent uneven wear or vibration
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with existing brake pads and calipers on Mercedes-Benz CL500, S430, and S500
• Inspect related components such as wheel bearings and hardware during installation

Quality Assurance and Warranty

Centric's C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.35039 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult product documentation or the manufacturer for exact warranty terms.