Raybestos 66688R Disc Brake Rotor and Hub Assembly - Front

Overview of Raybestos R-Line Disc Brake Rotor and Hub Assembly

The Raybestos R-Line 66688R disc brake rotor and hub assembly is engineered for reliable braking performance on Ford trucks. Designed specifically for Ford F-150, F-250, and F-250 HD models, this assembly ensures proper fitment and consistent stopping power.

• Compatible with Ford F-150, F-250, and F-250 HD
• Part number 66688R for precise identification
• Includes disc brake rotor and hub assembly
• 7 mounting bolt holes with 150 mm bolt circle diameter
• Nominal rotor thickness of 1.185 inches (30.100 mm)
• Discard thickness at 1.091 inches (27.700 mm) for wear limits
• Mounting bolt hole diameter of 0.563 inches (14.300 mm)

Detailed Product Specifications

This disc brake rotor and hub assembly features a nominal thickness of 1.185 inches (30.100 mm), providing a solid braking surface for effective heat dissipation and durability. The discard thickness is set at 1.091 inches (27.700 mm), indicating the minimum safe thickness before replacement is necessary. The assembly includes seven mounting bolt holes arranged on a 150 mm (5.906 inch) bolt circle diameter, ensuring secure attachment to the vehicle hub. Each mounting hole has a diameter of 0.563 inches (14.300 mm), compatible with the stud and lug configuration of the specified Ford models.

R-Line Product Line Information

The Raybestos R-Line product line focuses on delivering reliable, OEM-quality brake components designed to meet the demands of daily driving and moderate towing or hauling. The 66688R rotor and hub assembly is part of this line, offering a balance of performance and durability tailored for Ford trucks such as the F-150, F-250, and F-250 HD.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing excessive rotor thickness wear beyond discard limits
• Resolving hub assembly issues affecting wheel alignment or vibration
• Upgrading brake components for consistent stopping power on Ford F-150, F-250, and F-250 HD
• Ensuring proper fitment with 7-bolt mounting pattern and correct bolt circle diameter

Installation Notes and Tips

When installing the Raybestos R-Line 66688R disc brake rotor and hub assembly, ensure the mounting surface is clean and free of debris. Verify the bolt hole pattern matches the vehicle’s hub assembly, specifically the 7-bolt configuration with a 150 mm bolt circle diameter. Torque mounting bolts to manufacturer specifications to avoid warping or loosening. It is recommended to inspect related brake components such as pads and calipers during installation for optimal performance.

Quality Assurance and Warranty

Raybestos R-Line brake components are manufactured to meet or exceed OEM standards, providing consistent quality and durability. While specific warranty details for part number 66688R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship to ensure customer confidence in their brake parts.