Raybestos 66947R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 66947R

The Raybestos R-Line Disc Brake Rotor 66947R is engineered for reliable braking performance on select Ford and Lincoln vehicles. Designed as a vented, drum-in-hat type rotor, it offers effective heat dissipation and durability for models like the Ford F-150 and Lincoln Navigator.

• Vented disc brake rotor with drum-in-hat design
• Outside diameter: 13.150 inches (334.0 mm)
• Nominal thickness: 0.555 inches (14.1 mm)
• Discard thickness: 0.472 inches (12.0 mm)
• Overall height: 2.250 inches (57.15 mm)
• Mounting bolt hole quantity: 5 with 5.315 inch (135 mm) bolt circle diameter
• Center hole diameter: 3.445 inches (87.5 mm)
• Compatible with Ford Blackwood, Expedition, F-150, F-150 Heritage, and Lincoln Navigator

Detailed Product Description

The Raybestos R-Line 66947R disc brake rotor is specifically designed to meet the braking demands of full-size trucks and SUVs from Ford and Lincoln. Its vented construction improves heat dissipation during braking, reducing the risk of brake fade under heavy use. The drum-in-hat design integrates a parking brake drum within the rotor, providing a compact and efficient solution for vehicles equipped with rear drum parking brakes.

With an outside diameter of 13.150 inches and a nominal thickness of 0.555 inches, this rotor maintains structural integrity and consistent braking performance. The discard thickness of 0.472 inches indicates the minimum safe thickness before replacement is necessary, ensuring safety and reliability. The rotor features five mounting bolt holes arranged on a 5.315 inch bolt circle diameter, compatible with the specified Ford and Lincoln models.

Compatible Vehicles and Applications

• Ford Blackwood
• Ford Expedition
• Ford F-150 and F-150 Heritage
• Lincoln Navigator

This rotor is intended for use in the front or rear braking system where a vented, drum-in-hat rotor is specified. It addresses common braking issues such as rotor warping, uneven wear, and reduced braking efficiency.

Common Issues Addressed by Raybestos 66947R Rotor

• Brake rotor warping causing vibration during braking
• Reduced braking performance due to worn or thin rotors
• Uneven rotor wear leading to noise and pedal pulsation
• Overheating of brake components under heavy load
• Parking brake functionality in vehicles with drum-in-hat rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.472 inches) before installation
• Clean mounting surfaces to prevent rotor runout
• Torque mounting bolts to manufacturer specifications
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check compatibility with vehicle model and year before installation

Raybestos R-Line Quality Assurance

The R-Line product line from Raybestos is designed to provide dependable braking components that meet or exceed OEM specifications. The 66947R rotor undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details vary, Raybestos products typically include coverage against defects in materials and workmanship, supporting long-term reliability for Ford and Lincoln vehicles.