Raybestos 66749R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 66749R

The Raybestos R-Line Disc Brake Rotor 66749R is engineered for reliable braking performance on select Chrysler, Ford, Lincoln, and Mercury vehicles. Designed as a vented, conventional rotor, it meets the specific requirements of models like the Taurus, Continental, and Thunderbird.

• Vented disc brake rotor for improved heat dissipation
• Overall height: 1.830 inches (46.500 mm)
• Outside diameter: 11.580 inches (294.150 mm)
• Nominal thickness: 1.025 inches (26.050 mm)
• Discard thickness: 0.974 inches (24.750 mm)
• 5 mounting bolt holes with 4.250 inch (107.950 mm) bolt circle diameter
• Center hole diameter: 2.797 inches (71.050 mm)
• Conventional rotor type compatible with stud/lug hole quantity of 5

Detailed Product Description and Specifications

This Raybestos R-Line rotor, part number 66749R, is a vented disc brake rotor designed to provide consistent braking performance and heat management. The vented design helps reduce brake fade by allowing air to circulate between the rotor surfaces. With a nominal thickness of 1.025 inches and a discard thickness of 0.974 inches, this rotor ensures durability and safety by indicating when replacement is necessary. The overall height of 1.830 inches and an outside diameter of 11.580 inches make it suitable for specific vehicle applications requiring these dimensions.

The rotor features five mounting bolt holes arranged on a 4.250 inch bolt circle diameter, with a center hole diameter of 2.797 inches, ensuring proper fitment on compatible hubs. This conventional rotor type is designed for vehicles with five stud or lug holes, matching the specifications of various Chrysler, Ford, Lincoln, and Mercury models.

Raybestos R-Line Product Line Information

The R-Line by Raybestos is a product line focused on delivering reliable, OEM-quality brake components for a range of domestic vehicles. This line emphasizes precise fitment and consistent performance, making it suitable for drivers seeking dependable replacement parts. The 66749R rotor exemplifies the R-Line’s commitment to meeting factory specifications for vented disc brake rotors.

Compatible Vehicles and Common Applications

• Chrysler Cirrus and Sable
• Ford Taurus and Thunderbird
• Lincoln Continental and Mark VIII
• Mercury Cougar

This rotor is designed to address common braking issues such as vibration, noise, and reduced stopping power caused by worn or warped rotors.

• Eliminates brake pulsation and vibration
• Reduces brake noise and squealing
• Restores proper rotor thickness for safe braking
• Improves heat dissipation to prevent brake fade
• Ensures consistent braking performance under load

Installation Notes and Tips

When installing the Raybestos R-Line 66749R rotor, ensure the hub surface is clean and free of rust or debris to promote proper rotor seating. Verify the rotor thickness before installation and replace if below discard thickness. Use proper torque specifications for the 5 mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to maintain optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 66749R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.