Stoptech 128.35087L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.35087L is engineered for Mercedes-Benz SL500 models requiring reliable braking performance. Designed with precision, this solid rotor features a cross-drilled surface to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Mercedes-Benz SL500
• Part Number: 128.35087L
• Solid disc brake rotor with cross-drilled surface
• Coated hat finish for corrosion resistance
• Overall diameter: 300.2 mm (11.819 inches)
• Nominal thickness: 10.000 mm (0.394 inches)
• Discard thickness: 8.300 mm (0.327 inches)
• Floating disc mounting design
• 5 lug holes with 112.2 mm bolt circle diameter

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and reduced brake fade. The cross-drilled surface pattern allows for better ventilation and water dispersion, which is critical for maintaining consistent brake feel during spirited driving or heavy use. This rotor line features a coated hat finish to resist corrosion and extend service life, making it suitable for drivers who demand durability and performance from their braking components.

Technical Specifications and Features

This StopTech rotor is a solid type with a floating disc mounting system, which helps accommodate thermal expansion and reduces the risk of warping. The rotor measures 300.2 mm in outside diameter and has a nominal thickness of 10.000 mm, with a discard thickness of 8.300 mm, ensuring it meets strict OEM standards for wear limits. The hat is coated to protect against rust, and the rotor includes one miscellaneous hole and five stud/lug holes with a diameter of 15.3 mm, arranged on a 112.2 mm bolt circle diameter. The center hole diameter is 67.0 mm, designed to fit precisely on the Mercedes-Benz SL500 hub.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mercedes-Benz SL500
• Improves heat dissipation to reduce brake fade during aggressive driving
• Addresses rotor corrosion issues with coated hat finish
• Restores braking performance compromised by surface cracking or glazing
• Compatible upgrade for maintaining OEM braking specifications

Installation Notes and Tips

Ensure the rotor is installed on a clean, rust-free hub surface to maintain proper fitment. Verify the rotor thickness before installation; replace if below the discard thickness of 8.300 mm. Use proper torque specifications for the 5 lug nuts on the 112.2 mm bolt circle diameter. Since this rotor does not include bearings or an ABS tone ring, reuse existing components if applicable. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

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 coated hat finish provides additional 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. Always consult the product documentation or manufacturer for exact warranty terms.