Stoptech 127.35090R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.35090R) is engineered for Mercedes-Benz models including GL320, GL450, ML320, ML350, ML450, ML500, ML550, R320, R350, and R500. Designed to provide consistent braking performance, this rotor features a solid construction with a coated hat finish to resist corrosion and extend service life.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Solid rotor design with a nominal thickness of 0.551 inches (14.000 mm)
• Coated hat finish to protect against rust and corrosion
• Outside diameter of 12.992 inches (330.000 mm) for precise fitment
• Five lug holes with a 4.409 inch (112.000 mm) bolt circle diameter
• Overall height of 2.476 inches (62.900 mm) ensuring proper alignment
• Center hole diameter of 2.638 inches (67.000 mm) for secure mounting
• Weight approximately 17.5 lbs (7.95 kgs) for balanced performance

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to enhance braking efficiency through improved heat management and pad bite. The combination of cross-drilled holes and precision slots helps to reduce brake fade by allowing gases and debris to escape, while maintaining consistent contact with the brake pads. This rotor line is suitable for drivers seeking reliable performance on Mercedes-Benz SUVs and crossovers, such as the ML and GL series.

Technical Description and Specifications

This disc brake rotor is a solid type, measuring 12.992 inches (330 mm) in outside diameter and 0.551 inches (14 mm) in nominal thickness, with a discard thickness of 0.449 inches (11.4 mm). The rotor features a coated hat finish to resist corrosion, extending the rotor's lifespan. It includes five lug holes with a 4.409 inch (112 mm) bolt circle diameter and a center hole diameter of 2.638 inches (67 mm), ensuring compatibility with specified Mercedes-Benz models. The rotor's overall height is 2.476 inches (62.9 mm), and it weighs approximately 17.5 lbs (7.95 kgs). This part does not include ABS tone rings or bearings.

Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves heat dissipation to prevent rotor warping
• Helps maintain consistent braking performance under heavy loads
• Minimizes brake dust and debris buildup on pads
• Restores braking efficiency on Mercedes-Benz GL and ML series vehicles

Installation Notes and Tips

• Ensure rotor discard thickness is not exceeded before installation
• Verify compatibility with vehicle lug pattern and bolt circle diameter
• Clean rotor surface before installation to remove any protective coatings
• Torque lug nuts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to optimize rotor performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. 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. Always consult product documentation or the manufacturer for exact warranty terms.