Raybestos 66647R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 66647R

The Raybestos R-Line Disc Brake Rotor 66647R is engineered for reliable braking performance on Ford Expedition and Lincoln Navigator models. Designed as a vented, conventional rotor, it offers precise fitment and durability for these specific vehicles.

• Compatible with Ford Expedition and Lincoln Navigator
• Vented disc brake rotor design for improved heat dissipation
• Overall diameter of 12.120 inches (307.85 mm)
• Nominal thickness of 1.185 inches (30.1 mm) with discard thickness at 1.091 inches (27.7 mm)
• Five mounting bolt holes and lug holes for secure installation
• Center hole diameter of 3.638 inches (92.4 mm)
• Mounting bolt hole circle diameter of 5.315 inches (135 mm)
• Conventional rotor type suitable for drum-in-hat setups

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components tailored for specific vehicle applications. This product line emphasizes precise engineering and quality materials to meet the demands of Ford and Lincoln vehicles, ensuring consistent braking performance and fitment accuracy. The 66647R rotor is part of this line, designed to maintain OEM specifications and support vehicle safety.

Technical Description and Specifications

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade under heavy use. The rotor's overall height measures 1.855 inches (47.1 mm), providing the necessary clearance and compatibility with the braking system of the Ford Expedition and Lincoln Navigator. With a nominal thickness of 1.185 inches (30.1 mm) and a discard thickness of 1.091 inches (27.7 mm), the rotor ensures a balance between durability and performance. The five mounting bolt holes and lug holes align with the vehicle's hub, while the center hole diameter of 3.638 inches (92.4 mm) allows for proper centering on the axle hub. The mounting bolt hole circle diameter of 5.315 inches (135 mm) matches factory specifications for secure attachment.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Expedition and Lincoln Navigator
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Improves braking consistency and pedal feel
• Restores proper rotor thickness to prevent brake fade
• Suitable for vehicles experiencing overheating or reduced braking efficiency

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of rust before installation. Verify the rotor thickness is within specifications before mounting. Use proper torque settings on the five mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Check for any signs of uneven wear or damage on related brake components during installation.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details for part number 66647R are not provided here, Raybestos typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.