Raybestos 66584R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 66584R

The Raybestos R-Line Disc Brake Rotor 66584R is engineered for reliable braking performance on select Ford and Mercury vehicles. Designed specifically for models like the Ford Contour, Mercury Cougar, and Mercury Mystique, this vented rotor ensures consistent heat dissipation and durability under normal driving conditions.

• Vented disc brake rotor for improved cooling
• Overall diameter of 9.960 inches (253.000 mm)
• Nominal thickness of 0.790 inches (20.050 mm) with discard thickness at 0.709 inches (18.000 mm)
• Conventional rotor type with 4 mounting bolt holes
• Center hole diameter of 2.505 inches (63.650 mm)
• Mounting bolt hole circle diameter of 4.250 inches (107.950 mm)
• Compatible with Ford Contour, Mercury Cougar, and Mercury Mystique

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components that meet OEM specifications. This product line emphasizes quality materials and precise manufacturing tolerances, making the 66584R rotor a suitable replacement part for maintaining factory-level braking performance on compatible Ford and Mercury vehicles.

Technical Specifications and Features

The 66584R disc brake rotor features a vented design that helps reduce heat buildup during braking, which can improve rotor longevity and braking consistency. With a nominal thickness of 0.790 inches and a discard thickness of 0.709 inches, this rotor provides clear service limits for maintenance. The overall height measures 1.720 inches, and the rotor includes four mounting bolt holes arranged on a 4.250-inch bolt circle diameter, ensuring proper fitment on the specified vehicles. The center hole diameter of 2.505 inches allows for accurate alignment on the hub.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Contour, Mercury Cougar, and Mercury Mystique
• Addresses brake pulsation caused by uneven rotor surfaces
• Helps restore braking efficiency and pedal feel
• Reduces risk of overheating with vented rotor design
• Suitable for routine maintenance and brake system repairs

Installation Notes and Tips

When installing the Raybestos R-Line 66584R rotor, ensure the rotor surface is clean and free of rust or debris before mounting. Verify that the mounting bolt holes align correctly with the vehicle hub. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Torque mounting bolts to manufacturer specifications and check rotor thickness regularly to avoid discarding below the minimum thickness of 0.709 inches.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards, providing consistent quality and durability. While specific warranty details for part number 66584R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship to ensure customer confidence in their brake components.