Raybestos 980039 Disc Brake Rotor - Rear

Overview of Raybestos 980039 Disc Brake Rotor

The Raybestos Specialty - Street Performance disc brake rotor, part number 980039, is engineered for select Mercedes-Benz models including the CL500, S430, and S500. Designed to meet precise specifications, this vented rotor supports reliable braking performance under street driving conditions.

• Vented disc brake rotor for improved heat dissipation
• Nominal thickness of 0.866 inches (22.000 mm) with discard thickness at 0.764 inches (19.400 mm)
• Overall height measures 2.303 inches (58.500 mm)
• Outside diameter of 11.811 inches (300.000 mm)
• Five mounting bolt holes with a 4.409 inch (112.000 mm) bolt circle diameter
• Center hole diameter of 2.638 inches (67.000 mm)
• Conventional rotor type compatible with drum-in-hat setups

Specialty - Street Performance Product Line Details

The Specialty - Street Performance line by Raybestos focuses on delivering rotors that balance everyday drivability with enhanced street performance. This product line is tailored for drivers who require dependable braking with improved thermal management, making it suitable for Mercedes-Benz vehicles like the CL500, S430, and S500. The vented design of the 980039 rotor helps reduce brake fade during extended use.

Technical Description and Specifications

The Raybestos 980039 rotor features a vented design that promotes efficient heat dissipation, critical for maintaining braking consistency. With a nominal thickness of 0.866 inches (22.000 mm) and a discard thickness of 0.764 inches (19.400 mm), this rotor ensures a clear service life window. The overall height of 2.303 inches (58.500 mm) and an outside diameter of 11.811 inches (300.000 mm) align with factory specifications for the compatible Mercedes-Benz models. The rotor includes five mounting bolt holes arranged on a 4.409 inch (112.000 mm) bolt circle diameter, with a center hole diameter of 2.638 inches (67.000 mm), ensuring proper fitment and secure installation.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mercedes-Benz CL500, S430, and S500
• Addresses brake fade caused by excessive heat during street driving
• Resolves vibration or pulsation issues due to rotor thickness below discard limits
• Improves braking consistency with vented rotor design
• Compatible with conventional drum-in-hat brake systems

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness of 0.764 inches (19.400 mm)
• Clean mounting surfaces and check bolt hole alignment for the 5-bolt pattern on a 4.409 inch (112.000 mm) circle
• Use proper torque specifications for mounting bolts to avoid rotor warping
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

Raybestos rotors, including part number 980039, are manufactured to meet or exceed OEM standards for fit, form, and function. The Specialty - Street Performance line undergoes rigorous quality control to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the product documentation or supplier.