Centric 121.35125 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Mercedes-Benz CLS550, E350, and E550

The Centric C-TEK Standard Disc Brake Rotor 121.35125 is engineered to meet the braking demands of Mercedes-Benz CLS550, E350, and E550 models. Designed with precision, this vented rotor ensures consistent performance and durability under various driving conditions.

• Vented disc brake rotor with curved vane style for improved heat dissipation
• Nominal thickness of 0.945 inches (24.000 mm) and discard thickness of 0.843 inches (21.400 mm)
• Overall height measures 2.693 inches (68.400 mm) for proper fitment
• Outside diameter of 12.598 inches (320.000 mm) compatible with specified Mercedes-Benz models
• 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) for accurate mounting
• Solid smooth surface type without ABS tone ring included
• Weight approximately 19.1 lbs (8.68 kgs) for balanced performance

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers reliable replacement rotors designed to meet or exceed OEM specifications. This product line focuses on providing solid and vented rotors with smooth surfaces to ensure consistent braking performance and fitment accuracy. The 121.35125 rotor is part of this line, delivering dependable stopping power for Mercedes-Benz vehicles requiring vented rotors with precise dimensions.

Product Details and Specifications

This Centric disc brake rotor features a vented design with curved vanes that enhance airflow and heat dissipation, reducing the risk of brake fade during extended use. The rotor’s nominal thickness of 0.945 inches (24.000 mm) and discard thickness of 0.843 inches (21.400 mm) provide clear service limits for maintenance. Its smooth surface type ensures consistent pad contact and braking efficiency. The rotor is designed with a 5-lug pattern, 4.409 inch (112.000 mm) bolt circle diameter, and a center hole diameter of 2.638 inches (67.000 mm), ensuring proper alignment and fitment on compatible Mercedes-Benz CLS550, E350, and E550 models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to maintain braking safety
• Improving heat dissipation to reduce brake fade during heavy braking
• Restoring smooth braking surface for consistent pad engagement
• Ensuring proper rotor fitment for Mercedes-Benz CLS550, E350, and E550 models

Installation Notes and Tips

Before installation, verify rotor dimensions against vehicle specifications to ensure compatibility. Clean the rotor surface to remove any protective coatings or contaminants. Use proper torque specifications on lug nuts to avoid rotor warping. It is recommended to replace brake pads simultaneously to optimize braking performance. Check for any signs of hub or bearing wear during installation, although bearings are not included with this rotor.

Quality Assurance and Warranty

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