Centric 121.35031 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.35031

The Centric C-TEK Standard Disc Brake Rotor 121.35031 is engineered for reliable braking performance on select Mercedes-Benz models. Designed to meet OEM specifications, this vented rotor provides consistent stopping power and durability for vehicles such as the Mercedes-Benz 300CE, 300E, 300TE, 400E, E320, and E420.

• Vented disc brake rotor with smooth surface finish
• Nominal thickness of 0.984 inches (25.000 mm) and discard thickness of 0.882 inches (22.400 mm)
• Overall height of 1.949 inches (49.500 mm)
• Outside diameter measuring 11.575 inches (294.000 mm)
• Floating disc mounting with 5 lug holes and 3 additional miscellaneous holes
• Center hole diameter of 2.638 inches (67.000 mm) and mounting bolt hole circle diameter of 4.409 inches (112.000 mm)
• Straight vane style for effective heat dissipation
• Weight approximately 16.95 lbs (7.7 kgs)
• ABS tone ring not included; bearings not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to provide dependable, direct replacement rotors that meet or exceed OEM standards. This product line focuses on delivering rotors with precise fitment and consistent performance, making it suitable for routine maintenance and brake system repairs on compatible vehicles. The 121.35031 rotor exemplifies this approach with its vented design and exacting dimensional specifications tailored for Mercedes-Benz models.

Technical Details and Compatibility

This disc brake rotor features a vented design with straight vanes to enhance cooling during braking, reducing the risk of brake fade. The smooth surface type ensures even pad contact and wear. With a nominal thickness of 0.984 inches and a discard thickness of 0.882 inches, it provides a clear service life indicator for replacement. The rotor’s overall height and outside diameter are engineered to match factory specifications, ensuring proper fitment and function.

Compatible with Mercedes-Benz 300CE, 300E, 300TE, 400E, E320, and E420 models, this rotor uses a floating disc mounting system and includes five stud/lug holes with a diameter of 0.591 inches. The mounting bolt hole circle diameter is 4.409 inches, and the center hole diameter is 2.638 inches, all critical for proper installation and alignment.

Common Applications and Problem Resolution

• 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 linked to rotor surface irregularities
• Upgrading to vented rotors for improved heat dissipation in daily driving
• Ensuring proper fitment for Mercedes-Benz 300CE, 300E, 300TE, 400E, E320, and E420 brake systems

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 or vibration
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle ABS system; 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’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.35031 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship. This rotor is engineered to provide reliable braking for Mercedes-Benz 300CE, 300E, 300TE, 400E, E320, and E420 models when installed and maintained according to manufacturer guidelines.