Centric 121.35147 Disc Brake Rotor - Front or Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.35147

The Centric C-TEK Standard Disc Brake Rotor 121.35147 is engineered for reliable braking performance on select Mercedes-Benz models. Designed as a vented, floating rotor with a smooth surface, it offers consistent heat dissipation and durability for vehicles like the GL350, GLE63 AMG, and ML63 AMG.

• Vented disc brake rotor with pillar vane style for improved cooling
• Nominal thickness of 0.866 inches (22.000 mm) and discard thickness of 0.764 inches (19.400 mm)
• Overall height of 2.134 inches (54.200 mm) and outside diameter of 13.583 inches (345.000 mm)
• Floating disc mounting design with a center hole diameter of 2.642 inches (67.100 mm)
• Five stud/lug holes with a diameter of 0.598 inches (15.200 mm) and mounting bolt hole circle diameter of 4.421 inches (112.300 mm)
• Weight approximately 18.8 lbs (8.52 kgs), no ABS tone ring or bearings included

About the C-TEK Standard Disc Brake Rotors Line

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 Mercedes-Benz vehicles requiring reliable rotor replacements without additional features like ABS tone rings or bearings.

Detailed Product Description

This Centric disc brake rotor 121.35147 is designed specifically for Mercedes-Benz models including GL350, GL450, GL550, GLE63 AMG, GLE400, GLS450, GLS550, ML63 AMG, ML250, and ML400. The rotor features a vented design with pillar-style vanes that enhance airflow and heat dissipation during braking, reducing the risk of brake fade. The smooth surface finish ensures even pad contact and wear. The floating disc mounting allows for slight movement to accommodate thermal expansion and improve braking consistency. With a nominal thickness of 0.866 inches and discard thickness of 0.764 inches, this rotor provides a clear service life indicator for maintenance.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restoring braking performance on Mercedes-Benz GL and GLE series vehicles
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade during heavy use
• Ensuring proper fitment for models with five lug holes and floating disc mounts

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface and hub mounting area to prevent uneven wear
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to maintain optimal braking 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 for part number 121.35147 should be confirmed with the supplier, Centric generally offers coverage against defects in materials and workmanship. This rotor is engineered to provide consistent braking performance for Mercedes-Benz GL350, GLE63 AMG, ML63 AMG, and related models.