Raybestos 982121FZN Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Mercedes-Benz Models

The Raybestos Element3; Coated Rotor 982121FZN is engineered to provide consistent braking performance for select Mercedes-Benz vehicles. Designed as a vented, conventional disc brake rotor, it offers durability and smooth operation for models like the GL350, GL450, GLE400, GLS350d, GLS450, ML350, and ML400.

• Compatible with Mercedes-Benz GL350, GL450, GLE400, GLS350d, GLS450, ML350, and ML400
• Part number 982121FZN ensures precise fitment
• Vented rotor design for improved heat dissipation
• Coated surface to resist corrosion and extend rotor life
• 5 mounting bolt holes with a 112 mm bolt circle diameter
• Overall diameter of 350 mm (13.780 inches) and nominal thickness of 32.000 mm (1.260 inches)
• Smooth surface type for consistent pad contact

Product Line: Raybestos Element3; Coated Rotor

The Element3; Coated Rotor line from Raybestos focuses on delivering rotors with a protective coating that helps prevent rust and corrosion, which is critical for maintaining braking efficiency over time. This product line combines vented rotor technology with a smooth surface finish to optimize heat management and braking consistency, making it suitable for demanding driving conditions in Mercedes-Benz SUVs and crossovers.

Technical Specifications and Features

This disc brake rotor features a vented design that enhances airflow to reduce heat buildup during braking. The rotor has a nominal thickness of 32.000 mm (1.260 inches) and a discard thickness of 29.400 mm (1.158 inches), indicating when replacement is necessary to maintain safety. The overall height measures 54.500 mm (2.146 inches), and the rotor includes five mounting bolt holes with a 112 mm (4.409 inches) bolt circle diameter and 15.250 mm (0.600 inches) mounting bolt hole diameter. The center hole diameter is 67.000 mm (2.638 inches), ensuring proper alignment on the hub. The smooth surface type promotes even brake pad wear and consistent stopping power.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor corrosion and surface rust that reduce braking efficiency
• Improving heat dissipation to prevent brake fade during heavy use
• Restoring proper rotor thickness to maintain safe braking distances
• Ensuring compatibility with Mercedes-Benz GL350, GL450, GLE400, GLS350d, GLS450, ML350, and ML400 models

Installation Notes and Tips

When installing the Raybestos 982121FZN rotor, ensure the mounting surface is clean and free of debris to promote proper seating. Torque the mounting bolts to manufacturer specifications to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance. Verify rotor thickness before installation to confirm it meets minimum discard thickness requirements.

Quality Assurance and Warranty

Raybestos disc brake rotors undergo rigorous quality control to meet OEM standards for fit, form, and function. The Element3; Coated Rotor line includes a protective coating to resist corrosion, extending rotor life. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship.