Raybestos 66438R Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Ford Bronco and F-150

The Raybestos R-Line 66438R disc brake rotor is engineered to meet the braking demands of Ford Bronco and F-150 models. Designed with precision, this vented rotor ensures consistent performance and durability under various driving conditions.

• Vented disc brake rotor for improved heat dissipation
• Overall diameter of 11.720 inches (297.7 mm) for exact fitment
• Nominal thickness of 1.025 inches (26.05 mm) with discard thickness at 0.960 inches (24.4 mm)
• Five mounting bolt holes and lug holes for secure installation
• Center hole diameter of 3.881 inches (98.6 mm) compatible with specified Ford models
• Conventional rotor type designed for standard braking systems
• Overall height of 2.540 inches (64.5 mm) ensuring proper clearance

Detailed Specifications and Features

The Raybestos R-Line 66438R rotor features a vented design that enhances cooling efficiency, reducing the risk of brake fade during extended use. With an outside diameter of 11.720 inches and a nominal thickness of 1.025 inches, this rotor maintains structural integrity and consistent braking performance. The discard thickness of 0.960 inches indicates the minimum safe thickness before replacement is necessary, helping maintain vehicle safety. The rotor includes five mounting bolt holes and lug holes, matching the bolt circle diameter of 5.500 inches (139.7 mm), ensuring compatibility with Ford Bronco and F-150 models. The center hole diameter of 3.881 inches allows for proper hub fitment, and the overall height of 2.540 inches supports correct rotor positioning within the brake assembly.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering reliable, OEM-quality brake components designed for everyday driving conditions. This line emphasizes durability and consistent performance, making it suitable for Ford Bronco and F-150 owners seeking dependable replacement parts. The 66438R rotor exemplifies the R-Line’s commitment to precision manufacturing and fitment accuracy.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise issues related to uneven rotor surfaces
• Upgrading from solid to vented rotors for better heat management
• Ensuring proper fitment for Ford Bronco and F-150 brake systems

Installation Notes and Tips

When installing the Raybestos R-Line 66438R rotor, ensure the rotor surface is clean and free of any protective coatings before mounting. Verify that the mounting bolt holes and lug holes align correctly with the vehicle hub. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Torque all fasteners to manufacturer specifications and check for proper rotor clearance to avoid interference with calipers.

Quality Assurance and Warranty

Raybestos manufactures the R-Line 66438R rotor to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Always consult the product packaging or manufacturer documentation for exact warranty terms.