Stoptech 127.35052L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.35052L) is engineered for Mercedes-Benz models including the C32 AMG, C55 AMG, C350, CLK55 AMG, CLK500, CLK550, and SLK55 AMG. Designed to enhance braking performance, this vented rotor features a coated hat finish and a floating disc mounting system for improved heat dissipation and durability.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with curved vanes to optimize cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for reduced stress and improved performance
• Compatible with 5-lug wheel setups with 112 mm bolt circle diameter
• Outside diameter of 345 mm (13.583 inches) and overall height of 47.5 mm (1.870 inches)
• Nominal thickness of 30 mm (1.181 inches) with discard thickness at 27.4 mm (1.079 inches)

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor is specifically designed for select Mercedes-Benz AMG and non-AMG models, including the C32 AMG, C55 AMG, C350, CLK55 AMG, CLK500, CLK550, and SLK55 AMG. The rotor’s vented construction with curved vanes enhances airflow, helping to maintain optimal operating temperatures during aggressive driving or heavy braking conditions. The cross-drilled and slotted surface improves pad bite and helps evacuate brake dust, water, and gases, reducing the risk of brake fade.

The rotor features a coated hat finish that protects against rust and corrosion, which is critical for maintaining consistent braking performance over time. The floating disc mounting design allows for slight movement between the rotor and hat, reducing thermal stress and improving rotor longevity. With a 5-lug, 112 mm bolt circle diameter and a center hole diameter of 67 mm (2.638 inches), this rotor fits securely on compatible Mercedes-Benz wheel hubs.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is engineered to provide enhanced braking performance for performance-oriented vehicles. This product line focuses on improving heat dissipation and reducing brake fade through advanced rotor surface designs such as cross-drilling and slotting. The vented rotor construction with curved vanes further supports cooling efficiency, making these rotors suitable for spirited driving and track use while maintaining OEM-level fitment and reliability.

Common Applications and Problem Solving

• Reduces brake fade during high-performance or repeated braking
• Improves braking response and pad bite in wet or dusty conditions
• Minimizes rotor warping caused by excessive heat buildup
• Prevents corrosion-related rotor degradation with coated hat finish
• Enhances overall brake system durability and consistency

Installation Notes and Tips

• Ensure compatibility with Mercedes-Benz models: C32 AMG, C55 AMG, C350, CLK55 AMG, CLK500, CLK550, SLK55 AMG
• Check rotor discard thickness before installation; replace if below 27.4 mm (1.079 inches)
• Use proper torque specifications for 5-lug, 112 mm bolt circle mounting
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Follow manufacturer’s break-in procedure to ensure proper rotor and pad bedding

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. 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 StopTech directly for exact warranty terms.