Raybestos 980393 Disc Brake Rotor - Rear

Overview of Raybestos Specialty - Street Performance Rotor

The Raybestos Specialty - Street Performance disc brake rotor, part number 980393, is engineered for BMW Z4 models requiring reliable braking performance. This vented rotor is designed to maintain optimal heat dissipation and consistent stopping power under street driving conditions.

• Compatible with BMW Z4 vehicles
• Vented disc brake rotor design for improved cooling
• Overall height: 2.940 inches (74.700 mm)
• Outside diameter: 11.575 inches (294.000 mm)
• Mounting bolt hole quantity: 5 with 0.566 inch (14.400 mm) diameter
• Center hole diameter: 2.953 inches (75.000 mm)
• Nominal thickness: 0.748 inches (19.000 mm)
• Discard thickness: 0.685 inches (17.400 mm)
• Conventional rotor type with drum-in-hat design

Detailed Product Description

This Raybestos disc brake rotor, part number 980393, is specifically designed for the BMW Z4, ensuring precise fitment and performance. The rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. With an overall height of 2.940 inches and an outside diameter of 11.575 inches, it matches OEM specifications for proper clearance and compatibility. The rotor includes five mounting bolt holes with a 120 mm bolt circle diameter and a center hole diameter of 2.953 inches, facilitating straightforward installation. The nominal thickness of 0.748 inches provides durability, while the discard thickness of 0.685 inches indicates when replacement is necessary to maintain safe braking performance. This rotor uses a conventional drum-in-hat type design, suitable for the specified BMW Z4 models.

About the Specialty - Street Performance Product Line

The Raybestos Specialty - Street Performance line focuses on delivering rotors engineered for street-driven vehicles that require dependable braking under everyday and spirited driving conditions. This product line balances performance and durability, making it suitable for BMW Z4 owners seeking a rotor that meets OEM standards while providing consistent braking response.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW Z4
• Addresses brake fade caused by overheating during street driving
• Resolves vibration or pulsation issues due to uneven rotor thickness
• Improves braking consistency and pedal feel
• Restores proper rotor thickness to maintain safe stopping distances

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern compatibility with your BMW Z4 before installation
• Inspect brake pads and hardware for wear and replace if necessary
• Ensure mounting surfaces are clean and free of debris to prevent rotor runout
• Torque mounting bolts to manufacturer specifications to avoid warping
• Perform a bed-in procedure after installation to optimize rotor and pad performance

Quality Assurance and Warranty

Raybestos rotors, including part number 980393, are manufactured to meet or exceed OEM standards for fit, form, and function. The Specialty - Street Performance rotors undergo rigorous quality control to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the product documentation or supplier.