Centric 121.35017 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Mercedes-Benz Models

The Centric C-TEK Standard Disc Brake Rotor 121.35017 is engineered to provide consistent braking performance for select Mercedes-Benz vehicles. Designed specifically for models like the 300SD, 300SDL, 300SE, 300SEL, 350SD, 350SDL, 420SEL, 560SEC, and 560SEL, this rotor ensures proper fit and function.

• Compatible with multiple Mercedes-Benz models including 300SD and 560SEL
• Vented disc design for improved heat dissipation
• Overall diameter of 300 mm (11.811 inches) for precise fitment
• 5 mounting bolt holes with a 112 mm (4.409 inches) bolt circle diameter
• Nominal thickness of 27.9 mm (1.098 inches) with discard thickness at 25.4 mm (1.000 inch)
• Smooth surface type for consistent pad contact
• Center hole diameter of 80 mm (3.150 inches) for hub alignment
• Weight approximately 8.15 kg (17.92 lbs) for balanced performance

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for fit, form, and function. This product line focuses on providing reliable braking components with precise dimensions and quality materials. The 121.35017 rotor features a vented design with straight vanes to enhance cooling and reduce brake fade, making it suitable for the demanding braking requirements of Mercedes-Benz sedans and coupes.

Product Details and Specifications

This disc brake rotor features a vented construction with straight vanes that promote airflow and heat dissipation during braking. The rotor’s overall height measures 68.2 mm (2.685 inches), ensuring proper clearance and compatibility with the vehicle’s braking system. The mounting bolt hole diameter is 15 mm (0.591 inches), and the rotor mounts behind the hub, aligning with the original equipment setup. The smooth surface finish supports even brake pad wear and consistent stopping power. Note that 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 uneven rotor surfaces
• Upgrading to a vented rotor for improved heat management in Mercedes-Benz 300SE and 560SEC models
• Ensuring proper fitment and alignment on vehicles requiring 5-bolt mounting patterns

Installation Notes and Tips

• Verify rotor thickness before installation; discard thickness is 25.4 mm (1.000 inch)
• Ensure mounting surface and hub are clean and free of debris for proper rotor seating
• Use correct torque specifications for the 5 mounting bolts to avoid rotor warping
• Check compatibility with brake pads and calipers specific to Mercedes-Benz 300SDL and 420SEL
• Inspect related components such as wheel bearings and hub assemblies during installation

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring durability and consistent performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. It is recommended to consult product documentation or the manufacturer for exact warranty terms.