Raybestos 980426 Disc Brake Rotor - Front

Overview of Raybestos Specialty - Truck Disc Brake Rotor 980426

The Raybestos Specialty - Truck disc brake rotor 980426 is engineered for select Mercedes-Benz models, including the G55 AMG, GL, ML, and R series. Designed to meet specific vehicle requirements, this vented rotor ensures reliable braking performance under demanding conditions.

• Vented disc brake rotor for improved heat dissipation
• Overall height: 2.146 inches (54.5 mm)
• Outside diameter: 13.780 inches (350 mm)
• Mounting bolt hole quantity: 5 with 4.409 inch (112 mm) bolt circle diameter
• Center hole diameter: 2.638 inches (67 mm)
• Nominal thickness: 1.260 inches (32 mm); discard thickness: 1.157 inches (29.4 mm)
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Description

This Raybestos disc brake rotor, part number 980426, is part of the Specialty - Truck product line, which focuses on heavy-duty and specialty vehicle applications. The vented design enhances cooling efficiency, reducing the risk of brake fade during extended use. With a nominal thickness of 1.260 inches and a discard thickness of 1.157 inches, this rotor maintains structural integrity and safety throughout its service life. The 5-bolt mounting pattern and 2.638-inch center hole diameter ensure precise fitment on compatible Mercedes-Benz models.

Compatible Mercedes-Benz Models and Applications

• Mercedes-Benz G55 AMG
• Mercedes-Benz GL320, GL350, GL450, GL550
• Mercedes-Benz ML320, ML350, ML450, ML500, ML550
• Mercedes-Benz R320, R350, R500

This rotor is designed specifically for these models, providing a direct replacement that meets factory specifications.

Common Issues Addressed by This Rotor

• Brake rotor warping due to heat buildup
• Reduced braking efficiency from worn or thin rotors
• Brake noise caused by uneven rotor surfaces
• Vibration or pulsation during braking
• Corrosion and surface damage affecting rotor performance

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.157 inches) before installation
• Clean mounting surfaces to prevent uneven rotor seating
• Torque mounting bolts to manufacturer specifications
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check for proper rotor runout to avoid vibration issues

Quality Assurance and Warranty

Raybestos Specialty - Truck rotors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 980426 should be confirmed with the supplier, Raybestos products typically come with a limited warranty against defects in materials and workmanship.