Centric 121.35091 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.35091

The Centric C-TEK Standard Disc Brake Rotor 121.35091 is engineered for reliable braking performance on select Mercedes-Benz models. Designed as a vented, floating rotor, it offers consistent heat dissipation and durability for vehicles such as the G55 AMG, GL-Class, ML-Class, and R-Class.

• Compatible with Mercedes-Benz G55 AMG, GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, ML550, R320, R350, and R500
• Part number 121.35091 ensures precise fitment and quality
• Vented rotor design with straight vane style for effective cooling
• Nominal thickness of 1.260 inches (32.000 mm) and discard thickness of 1.157 inches (29.400 mm)
• Overall height of 2.157 inches (54.800 mm) and outside diameter of 13.780 inches (350.000 mm)
• Floating disc mounting with 5 lug holes and 4.409 inch (112.000 mm) bolt circle diameter
• Solid smooth surface type without ABS tone ring included

Detailed Product Description

The Centric C-TEK Standard Disc Brake Rotor 121.35091 is a vented rotor featuring a floating disc mounting system that helps reduce stress and improve rotor longevity. Its straight vane design promotes efficient airflow to dissipate heat generated during braking, which is critical for maintaining consistent stopping power and preventing brake fade. The rotor measures 13.780 inches (350 mm) in outside diameter with a nominal thickness of 1.260 inches (32 mm), providing a robust braking surface. The discard thickness is 1.157 inches (29.4 mm), indicating the minimum safe thickness before replacement is necessary. This rotor is designed without an ABS tone ring and does not include bearings, making it suitable for direct replacement on compatible Mercedes-Benz models.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a balance of quality and value for everyday driving conditions. These rotors are manufactured to meet or exceed OEM specifications, providing reliable performance and fitment. The 121.35091 rotor is part of this line, designed specifically for Mercedes-Benz vehicles requiring vented, floating rotors with precise dimensions and mounting configurations.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency on Mercedes-Benz G55 AMG and GL-Class models
• Eliminates noise and vibration related to rotor surface irregularities
• Prevents overheating and brake fade during extended use
• Ensures proper rotor thickness for safe braking performance

Installation Notes and Tips

• Verify compatibility with your specific Mercedes-Benz model and year before installation
• Inspect hub and mounting surfaces for cleanliness and damage prior to rotor installation
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Replace brake pads simultaneously to ensure even wear and optimal braking
• Check rotor thickness with a micrometer to confirm discard limits before installation

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.35091 should be confirmed at the point of purchase, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is engineered to provide dependable braking for Mercedes-Benz vehicles including the G55 AMG, GL-Class, ML-Class, and R-Class models.