Raybestos 980177R Disc Brake Rotor - Rear Left

Overview of Raybestos R-Line Disc Brake Rotor 980177R

The Raybestos R-Line Disc Brake Rotor 980177R is engineered for BMW M3 and Z3 models, providing reliable braking performance with precise fitment. This vented rotor is designed to meet OEM specifications, ensuring consistent stopping power and durability.

• Compatible with BMW M3 and Z3 models
• Vented disc brake rotor for improved heat dissipation
• Overall height: 2.405 inches (61.100 mm)
• Outside diameter: 12.280 inches (311.900 mm)
• Mounting bolt hole circle diameter: 4.724 inches (120.000 mm)
• Nominal thickness: 0.790 inches (20.050 mm)
• Discard thickness: 0.724 inches (18.400 mm)
• Conventional rotor type

Detailed Product Description

The Raybestos R-Line 980177R disc brake rotor is a vented, conventional rotor designed specifically for select BMW vehicles, including the M3 and Z3. Its vented design enhances airflow between the rotor surfaces, helping to reduce heat buildup during braking and maintain consistent performance. The rotor measures 12.280 inches (311.900 mm) in outside diameter and has an overall height of 2.405 inches (61.100 mm), matching OEM dimensions for proper fitment.

With a nominal thickness of 0.790 inches (20.050 mm) and a discard thickness of 0.724 inches (18.400 mm), this rotor provides a clear service life indicator to ensure safe replacement intervals. The mounting bolt hole circle diameter is 4.724 inches (120.000 mm), compatible with the bolt pattern on the specified BMW models. This conventional rotor type is designed for direct replacement without modification.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering reliable, OEM-quality brake components for a range of vehicles. The R-Line rotors are manufactured to meet strict quality standards, providing consistent performance and durability. The 980177R rotor is part of this line, offering a balance of value and engineering precision tailored for BMW M3 and Z3 applications.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on BMW M3 and Z3
• Improves braking performance by restoring proper rotor thickness
• Reduces brake fade caused by excessive heat buildup
• Eliminates vibration or pulsation during braking
• Ensures safe and consistent stopping power

Installation Notes and Tips

When installing the Raybestos R-Line 980177R rotor, ensure the mounting surface is clean and free of rust or debris to maintain proper rotor alignment. Verify the rotor thickness before installation to confirm it meets or exceeds the discard thickness specification of 0.724 inches (18.400 mm). Use the correct torque specifications for the mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to optimize braking performance.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured under strict quality control standards to meet or exceed OEM requirements. The 980177R rotor undergoes rigorous testing to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.