Stoptech 128.35063L Disc Brake Rotor - Rear Left

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.35063L) are engineered for Mercedes-Benz models including CLS400, CLS500, CLS550, E320, E350, E400, E500, E550, GLK250, GLK280, GLK300, and GLK350. These rotors provide reliable braking performance with a vented design and cross-drilled surface to enhance heat dissipation and reduce brake fade.

• Cross-drilled surface for improved heat dissipation
• Vented rotor design with curved vanes for efficient cooling
• Coated hat finish to resist corrosion
• Nominal thickness of 0.866 inches (22.000 mm) with discard thickness at 0.764 inches (19.400 mm)
• Overall diameter of 11.811 inches (300.000 mm) and height of 2.689 inches (68.300 mm)
• 5 lug holes with 0.591 inch (15.000 mm) diameter and 4.409 inch (112.000 mm) bolt circle diameter
• Floating/dih disc mounting with one miscellaneous hole
• Weight approximately 15.5 lbs (7.05 kgs)

Product Line Details: StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to offer enhanced braking performance through advanced rotor surface technology. The cross-drilled pattern improves water and gas evacuation from the rotor surface, which helps maintain consistent braking under demanding conditions. The vented design with curved vanes promotes airflow to reduce heat buildup, making these rotors suitable for both street and light track use on compatible Mercedes-Benz vehicles.

Technical Description and Specifications

This disc brake rotor features a vented construction with curved vanes that optimize airflow and cooling efficiency. The cross-drilled surface reduces brake fade by allowing gases and heat to escape more effectively during braking. The rotor’s coated hat finish provides corrosion resistance, extending the rotor’s service life. With a nominal thickness of 0.866 inches (22.000 mm) and a discard thickness of 0.764 inches (19.400 mm), these rotors meet strict OEM specifications for durability and performance. The rotor measures 11.811 inches (300.000 mm) in outside diameter and 2.689 inches (68.300 mm) in overall height, designed to fit specific Mercedes-Benz models with a 5-lug bolt pattern and 4.409 inch (112.000 mm) bolt circle diameter.

Applications and Problem Solving

• Improves braking consistency and reduces fade during aggressive driving
• Enhances heat dissipation to prevent rotor warping
• Reduces brake dust and gas buildup for cleaner braking surfaces
• Resists corrosion with coated hat finish for longer service life
• Compatible with Mercedes-Benz CLS and E-Class models, as well as GLK series

Installation Notes and Tips

• Ensure compatibility with your specific Mercedes-Benz model before installation
• Inspect brake pads and calipers for wear when replacing rotors
• Follow manufacturer torque specifications for lug nuts and mounting bolts
• Perform a proper bed-in procedure after installation to optimize rotor and pad performance
• ABS tone ring is not included; verify ABS sensor compatibility if applicable

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The rotors undergo rigorous quality control to ensure consistent performance and durability. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or StopTech directly for warranty terms related to part number 128.35063L.