Stoptech 128.35034L Disc Brake Rotor - Rear Left

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.35034L) are engineered for precision braking performance on select Mercedes-Benz models. Designed to provide consistent stopping power, these rotors are a reliable upgrade for vehicles such as the C36 AMG, CLK350, and E320.

• Cross-drilled solid disc brake rotor design for improved heat dissipation
• Coated hat finish to resist corrosion and extend rotor life
• Nominal thickness of 0.394 inches (10.000 mm) with discard thickness at 0.327 inches (8.300 mm)
• Overall diameter of 11.417 inches (290.000 mm) suitable for specific Mercedes-Benz models
• Five lug holes with a 4.409 inch (112.000 mm) bolt circle diameter
• Center hole diameter of 2.638 inches (67.000 mm) for precise fitment
• Solid rotor type with floating disc mounting and one miscellaneous hole
• Weight approximately 10.7 lbs (4.86 kgs) per rotor

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

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on delivering enhanced braking performance through cross-drilled surfaces that aid in heat dissipation and gas venting. This product line is designed for drivers seeking improved brake response and durability without compromising OEM fitment. The solid rotor construction combined with a coated hat finish ensures resistance to corrosion and maintains structural integrity under demanding conditions.

Technical Description and Fitment

This disc brake rotor, part number 128.35034L, is specifically compatible with a range of Mercedes-Benz vehicles including the C230, C280, C320, CLK320, E300, E420, and SLK series models. The rotor features a solid design with cross-drilled holes to reduce brake fade by improving heat dissipation during aggressive driving or heavy braking. The coated hat finish protects against rust and corrosion, extending the rotor’s service life. With a nominal thickness of 0.394 inches and discard thickness of 0.327 inches, this rotor meets strict OEM specifications for safety and performance.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking consistency under high-performance driving conditions
• Prevents corrosion on rotor hats for longer durability
• Restores proper braking performance on Mercedes-Benz C36 AMG and CLK350 models
• Addresses uneven rotor wear and vibration issues

Installation Notes and Tips

Ensure the rotor is installed on compatible Mercedes-Benz models listed in the fitment section. Verify rotor thickness before installation to confirm it is above the discard thickness of 0.327 inches. Use proper torque specifications for the five lug bolts on the 4.409 inch bolt circle diameter. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Clean the rotor surface before installation to remove any protective coatings or residues.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and performance. 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 manufacturer resources for exact warranty terms.