Raybestos 680990R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 680990R

The Raybestos R-Line Disc Brake Rotor 680990R is engineered for reliable braking performance on Ford Mustang models. Designed as a vented, conventional rotor, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Ford Mustang vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 13.780 inches (350.000 mm)
• Nominal thickness of 0.748 inches (19.000 mm) with discard thickness at 0.689 inches (17.500 mm)
• Five mounting bolt holes with a 4.500 inch (114.300 mm) bolt circle diameter
• Smooth surface type for consistent pad contact
• Center hole diameter of 2.785 inches (70.750 mm)
• Overall height of 1.366 inches (34.700 mm)

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components that meet or exceed OEM specifications. This product line emphasizes quality materials and precise manufacturing to ensure proper fitment and performance. The 680990R rotor exemplifies the R-Line’s commitment to providing rotors that maintain structural integrity and consistent braking response for Ford Mustang applications.

Technical Specifications and Features

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. The rotor’s nominal thickness is 0.748 inches (19.000 mm), with a discard thickness of 0.689 inches (17.500 mm), indicating when replacement is necessary to maintain safe braking. The rotor measures 13.780 inches (350.000 mm) in outside diameter and 10.366 inches (263.300 mm) inside diameter, ensuring compatibility with the specified vehicle. It includes five mounting bolt holes with a 4.500 inch (114.300 mm) bolt circle diameter and a center hole diameter of 2.785 inches (70.750 mm), designed for secure installation on Ford Mustang hubs. The smooth surface type promotes even pad wear and consistent braking performance.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade during extended use
• Restoring proper rotor dimensions for safe and effective braking
• Ensuring compatibility with Ford Mustang brake systems requiring vented rotors

Installation Notes and Tips

When installing the Raybestos R-Line 680990R rotor, ensure the mounting surface is clean and free of debris to prevent uneven rotor seating. Verify the rotor thickness before installation to confirm it meets minimum specifications. Use proper torque settings on the five mounting bolts to secure the rotor firmly. It is recommended to replace brake pads simultaneously to optimize braking performance and rotor longevity.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet OEM standards, ensuring reliable fit and function for Ford Mustang vehicles. While specific warranty details for part number 680990R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship. This rotor is designed to provide consistent braking performance when installed and maintained according to manufacturer guidelines.