Stoptech 127.35090L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.35090L 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
• Overall 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
• Compatible with Mercedes-Benz GL and ML series, as well as R-Class models
• Part number 127.35090L for accurate identification and replacement

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.35090L is a solid rotor designed to meet the braking demands of various Mercedes-Benz SUVs and crossovers. The rotor’s cross-drilled and slotted surface enhances cooling by allowing heat and gases to escape more efficiently during braking, reducing the risk of brake fade. The slotted design also helps maintain pad surface cleanliness, improving overall braking response. With a coated hat finish, the rotor resists corrosion, which is critical for maintaining performance and longevity in diverse driving conditions.

The rotor measures 12.992 inches (330.000 mm) in outside diameter and has a nominal thickness of 0.551 inches (14.000 mm), ensuring compatibility with the specified Mercedes-Benz models. It features a 5-lug pattern with a 4.409 inch (112.000 mm) bolt circle diameter and a center hole diameter of 2.638 inches (67.000 mm), designed for precise mounting. The overall height is 2.476 inches (62.900 mm), and the rotor weighs approximately 17.5 lbs (7.95 kgs).

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is engineered to provide enhanced braking performance through improved heat dissipation and pad cleaning. This product line focuses on solid rotors with cross-drilled holes and slots to optimize braking efficiency and durability. The coated hat finish adds corrosion resistance, making these rotors suitable for both daily driving and spirited use on compatible Mercedes-Benz vehicles.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves brake pad bite and responsiveness
• Helps prevent glazing and buildup on brake pads
• Minimizes rotor corrosion for longer service intervals
• Ensures consistent braking performance on Mercedes-Benz GL, ML, and R-Class models

Installation Notes and Tips

• Verify compatibility with your specific Mercedes-Benz model and year before installation
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Clean mounting surfaces to prevent uneven rotor wear or noise
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Perform a proper bed-in procedure after installation for best braking results

Quality Assurance and Warranty

StopTech rotors are manufactured to meet strict quality standards for durability and performance. The 127.35090L rotor undergoes rigorous testing to ensure it meets OEM specifications for fit and function on Mercedes-Benz GL320, GL450, ML320, ML350, ML450, ML500, ML550, R320, R350, and R500 models. 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 the manufacturer for exact warranty terms.