Stoptech 127.35080L Disc Brake Rotor - Front Left

Overview of StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.35080L) are engineered for enhanced braking performance and durability. Designed specifically for select Mercedes-Benz models, these rotors offer improved heat dissipation and consistent stopping power under demanding conditions.

• 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 better rotor alignment and reduced warping
• Compatible with Mercedes-Benz CLS500, CLS550, E550, GLK250, GLK280, GLK300, and GLK350
• Nominal thickness of 1.260 inches (32.000 mm) with discard thickness at 1.157 inches (29.400 mm)
• Outside diameter of 12.992 inches (330.000 mm) and overall height of 2.539 inches (64.500 mm)
• Five lug holes with a 4.409 inch (112.000 mm) bolt circle diameter

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering rotors that combine cross-drilled holes and precision slots to improve brake pad bite and reduce brake fade. This product line is designed to enhance braking performance for sport and luxury vehicles by improving heat dissipation and maintaining rotor integrity under high-stress conditions. The 127.35080L rotor features a vented design with curved vanes and a coated hat finish, aligning with the product line’s emphasis on durability and consistent performance.

Detailed Product Description

This disc brake rotor is a vented type with curved vanes that promote efficient airflow, helping to reduce heat buildup during braking. The cross-drilled and slotted surface design aids in expelling gases and debris from the brake pad surface, which can improve braking response and reduce the risk of brake fade. The coated hat finish provides corrosion resistance, extending the rotor’s service life. With a floating disc mounting system, the rotor allows for slight movement to accommodate thermal expansion and reduce the chance of warping. The rotor’s dimensions, including a 12.992 inch (330 mm) outside diameter and 2.539 inch (64.5 mm) overall height, are tailored to fit specific Mercedes-Benz models, ensuring proper fit and function.

Compatible Vehicles and Common Applications

• Replacement rotor for Mercedes-Benz CLS500 and CLS550 models
• Suitable for Mercedes-Benz E550 braking system upgrades or maintenance
• Compatible with Mercedes-Benz GLK250, GLK280, GLK300, and GLK350 for improved braking performance
• Ideal for addressing brake fade and overheating issues in these Mercedes-Benz vehicles
• Useful for restoring rotor thickness and surface integrity after wear or damage

Installation Notes and Tips

• Ensure rotor discard thickness of 1.157 inches (29.400 mm) is not exceeded during replacement
• Verify compatibility with vehicle lug pattern: 5 lug holes on a 4.409 inch (112 mm) bolt circle diameter
• Check that the ABS tone ring is not required, as this rotor does not include one
• Use proper torque specifications for mounting bolts to avoid rotor distortion
• Inspect brake pads and calipers during installation for optimal braking system performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 127.35080L rotor undergoes rigorous quality control to ensure consistent thickness, balanced weight (24.1 lbs / 10.95 kgs), and precise machining. 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.