Raybestos 66476R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 66476R

The Raybestos R-Line Disc Brake Rotor 66476R is engineered for reliable braking performance on Ford trucks and SUVs. Designed specifically for Ford F-250, F-250 HD, F-350, and Ranger models, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.

• Vented disc brake rotor for improved cooling
• Nominal thickness of 1.185 inches (30.100 mm)
• Discard thickness at 1.122 inches (28.500 mm)
• Overall height of 3.100 inches (78.750 mm)
• Outside diameter measuring 12.950 inches (328.950 mm)
• Eight mounting bolt holes with a 6.500-inch (165.100 mm) bolt circle diameter
• Center hole diameter of 5.130 inches (130.300 mm)
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Specifications

This Raybestos R-Line rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade on heavy-duty Ford trucks like the F-250 and F-350. The rotor’s nominal thickness of 1.185 inches (30.100 mm) provides a solid braking surface, while the discard thickness of 1.122 inches (28.500 mm) indicates the minimum safe thickness before replacement is necessary. With an overall height of 3.100 inches (78.750 mm) and an outside diameter of 12.950 inches (328.950 mm), this rotor fits precisely on compatible Ford models. The eight mounting bolt holes and stud/lug hole quantity ensure secure installation on vehicles requiring this configuration.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering dependable braking components for trucks and SUVs. This line emphasizes durability and consistent performance, making it suitable for vehicles like the Ford F-250, F-250 HD, F-350, and Ranger. The 66476R rotor exemplifies the R-Line’s commitment to quality materials and precise manufacturing tolerances.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford F-250 and F-350 models
• Improves braking performance under heavy load conditions
• Reduces brake fade caused by overheating during towing or hauling
• Restores proper rotor thickness for safe braking operation
• Compatible upgrade for vented rotor setups on Ford Ranger trucks

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and hardware during rotor replacement for optimal system performance
• Use proper tools to avoid damage to the rotor or mounting components

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The 66476R rotor undergoes rigorous quality control processes to maintain consistent thickness and balance. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship for a defined period. Consult product documentation or the manufacturer for exact warranty terms.