Raybestos 66489R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 66489R

The Raybestos R-Line Disc Brake Rotor 66489R 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 meets precise specifications to maintain optimal stopping power and heat dissipation.

• Vented disc brake rotor for improved heat management
• Overall height: 1.850 inches (47.000 mm)
• Outside diameter: 10.230 inches (259.850 mm)
• Nominal thickness: 0.945 inches (24.000 mm)
• Discard thickness: 0.874 inches (22.200 mm)
• 4 mounting bolt holes and 4 stud/lug holes
• Center hole diameter: 2.498 inches (63.450 mm)
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Specifications

The Raybestos R-Line 66489R rotor features a vented design that enhances cooling during braking, reducing the risk of brake fade under demanding conditions. With a nominal thickness of 0.945 inches and a discard thickness of 0.874 inches, this rotor ensures a balance between durability and performance. The overall height of 1.850 inches and an outside diameter of 10.230 inches are tailored to fit the braking system of Ford Contour, Mercury Cougar, and Mercury Mystique models. The rotor includes four mounting bolt holes and four stud/lug holes, with a center hole diameter of 2.498 inches, ensuring proper alignment and secure installation.

Raybestos R-Line Product Line Information

The R-Line by Raybestos is a product line focused on delivering dependable brake components that meet or exceed OEM specifications. This line emphasizes quality materials and precise manufacturing tolerances, making it suitable for drivers seeking reliable replacement parts for their vehicles. The 66489R rotor exemplifies the R-Line’s commitment to consistent performance and fitment accuracy for Ford and Mercury vehicles.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Contour, Mercury Cougar, and Mercury Mystique
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Improves braking efficiency by restoring proper rotor thickness and heat dissipation
• Prevents brake fade during extended or heavy braking conditions
• Compatible with conventional drum-in-hat brake systems requiring vented rotors

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern compatibility with your specific vehicle model
• Inspect brake pads and hardware for wear during rotor replacement
• Ensure proper torque specifications on mounting bolts to avoid rotor warping
• Clean rotor surface before installation to remove any protective coatings
• Follow manufacturer guidelines for bedding in new rotors and pads

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet stringent quality standards, ensuring consistent performance and durability. While specific warranty details for part number 66489R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide reliable service life when installed and maintained according to vehicle manufacturer recommendations.