Raybestos 66914R Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Ford Super Duty Trucks

The Raybestos R-Line 66914R disc brake rotor is engineered for Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models. Designed to meet precise specifications, this vented rotor ensures consistent braking performance under demanding conditions.

• Compatible with Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty
• Vented disc brake rotor for improved heat dissipation
• Overall height: 3.910 inches (99.3 mm)
• Outside diameter: 13.030 inches (330.95 mm)
• Nominal thickness: 1.495 inches (37.95 mm)
• Discard thickness: 1.417 inches (36.0 mm)
• Mounting bolt hole quantity: 8 with 0.636 inch (16.15 mm) diameter
• Center hole diameter: 5.085 inches (129.15 mm)
• Conventional rotor type with 8 stud/lug holes

Detailed Specifications and Design Features

The Raybestos R-Line 66914R rotor is a vented, conventional disc brake rotor designed to provide effective heat dissipation and maintain structural integrity during heavy braking. With an outside diameter of 13.030 inches and an overall height of 3.910 inches, this rotor fits securely on the hub with an 8-bolt mounting pattern and a center hole diameter of 5.085 inches. The nominal thickness of 1.495 inches ensures durability, while the discard thickness of 1.417 inches indicates the minimum safe thickness before replacement is necessary. The vented design helps reduce brake fade by allowing air to circulate between the rotor surfaces, which is critical for Ford Super Duty trucks used in towing or heavy-duty applications.

R-Line Product Line Overview

The Raybestos R-Line series focuses on delivering reliable, OEM-quality brake components tailored for specific vehicle applications. The R-Line disc brake rotors are engineered to meet or exceed factory specifications, providing consistent performance and fitment. The 66914R rotor is part of this line, offering a balance of durability and thermal management suitable for Ford Super Duty trucks.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Excursion and Super Duty trucks
• Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
• Improves braking performance under heavy load or towing conditions
• Prevents overheating and brake fade with vented rotor design
• Restores proper rotor thickness to maintain safe braking distances

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.417 inches) before installation
• Clean mounting surface and hub to prevent rotor runout
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Perform a bed-in procedure after installation to maximize rotor and pad contact

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent dimensions and material integrity. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Using the 66914R rotor helps maintain the safety and reliability expected from OEM replacement parts for Ford Excursion and Super Duty trucks.