Raybestos 66821FZN Disc Brake Rotor and Hub Assembly - Front

Reliable Disc Brake Rotor and Hub Assembly for Ford Trucks

The Raybestos Element3; Coated Rotor 66821FZN is engineered to provide consistent braking performance for Ford F-150 and F-250 models. Designed with precise specifications, this disc brake rotor and hub assembly ensures a secure fit and reliable operation under demanding conditions.

• Compatible with Ford F-150 and F-250 models
• Part number 66821FZN for accurate identification
• Mounting bolt hole quantity: 5 with a 135 mm (5.315 inch) bolt circle diameter
• Mounting bolt hole diameter: 14.3 mm (0.563 inch)
• Nominal rotor thickness: 1.030 inches (26.150 mm)
• Discard thickness: 0.972 inches (24.700 mm)
• Includes stud/lug hole quantity of 5 for secure wheel attachment

About the Element3; Coated Rotor Product Line

The Element3; Coated Rotor line by Raybestos features rotors with a protective coating designed to resist corrosion and extend service life. This coating helps maintain rotor integrity and appearance, especially in environments prone to moisture and road salt exposure. The 66821FZN rotor and hub assembly benefits from this coating, contributing to consistent braking performance and durability for Ford F-150 and F-250 trucks.

Technical Specifications and Features

This disc brake rotor and hub assembly is manufactured to meet strict dimensional standards. The nominal thickness of 1.030 inches (26.150 mm) ensures optimal rotor mass for heat dissipation, while the discard thickness of 0.972 inches (24.700 mm) indicates the minimum safe thickness before replacement is necessary. The 5 mounting bolt holes with a 135 mm (5.315 inch) bolt circle diameter and 14.3 mm (0.563 inch) hole diameter provide a precise fit for the specified Ford models. Additionally, the 5 stud/lug holes allow for secure wheel mounting, maintaining vehicle safety and stability.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford F-150 and F-250
• Addresses brake pulsation and vibration issues
• Restores proper braking performance and stopping distance
• Prevents rotor corrosion and surface degradation
• Ensures compatibility with factory wheel mounting specifications

Installation Notes and Tips

When installing the Raybestos 66821FZN rotor and hub assembly, ensure the mounting surfaces are clean and free of debris. Verify the bolt hole alignment matches the 5-bolt pattern with a 135 mm bolt circle diameter. Use a calibrated torque wrench to tighten mounting bolts to manufacturer specifications. Inspect the rotor thickness before installation to confirm it exceeds the discard thickness of 0.972 inches. Proper installation will help maintain braking efficiency and extend component life.

Quality Assurance and Warranty

Raybestos manufactures the Element3; Coated Rotor line to meet or exceed OEM standards. Each rotor and hub assembly undergoes rigorous quality control to ensure dimensional accuracy and coating integrity. While specific warranty details for part number 66821FZN should be confirmed with the supplier, Raybestos products typically include coverage against defects in materials and workmanship.