Stoptech 128.35057L Disc Brake Rotor - Front Left

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotor (Part Number 128.35057L) is engineered for Mercedes-Benz vehicles including the C230, C240, C280, E300, and SLK230 models. Designed to provide reliable braking performance, this vented rotor features a coated hat finish and cross-drilled surface for improved heat dissipation.

• Cross-drilled surface type for enhanced cooling and reduced brake fade
• Vented rotor design with pillar-style vanes for efficient heat management
• Coated hat finish to resist corrosion and extend rotor life
• Nominal outside diameter of 288 mm (11.339 inches) for precise fitment
• Floating disc mounting with 5 lug holes (0.520 inch diameter) and 112 mm bolt circle diameter
• Nominal thickness of 25.000 mm (0.984 inches) with discard thickness at 22.400 mm (0.882 inches)
• Overall height of 46.500 mm (1.831 inches) ensuring proper alignment and clearance

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on performance-oriented rotors that combine advanced surface treatments and vented designs. This product line is tailored to improve braking efficiency and thermal management, making it suitable for drivers seeking consistent stopping power under demanding conditions. The cross-drilled pattern helps dissipate heat and gases, reducing the risk of brake fade during extended use.

Technical Details and Compatibility

This disc brake rotor is specifically compatible with select Mercedes-Benz models such as the C230, C240, C280, E300, and SLK230. The rotor features a center hole diameter of 67.000 mm (2.638 inches) and includes two miscellaneous holes for mounting precision. It does not include ABS tone rings or bearings, so these components must be sourced separately if required. Weighing approximately 14 lbs (6.360 kgs), the rotor balances durability with manageable weight for optimal vehicle dynamics.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading factory rotors to improve heat dissipation and reduce fade
• Addressing corrosion issues with coated hat finish for longer service life
• Improving braking consistency on Mercedes-Benz C230, C240, C280, E300, and SLK230 models
• Ensuring proper fitment with exact bolt pattern and rotor dimensions

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern compatibility with your specific Mercedes-Benz model
• Ensure hub surface is clean and free of debris before installation
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check brake pads for wear and replace if necessary to maximize rotor performance
• Do not reuse old hardware; replace mounting bolts if damaged or corroded

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. It is recommended to consult the product documentation or manufacturer for exact warranty terms.