Raybestos 66840FZN Disc Brake Rotor - Rear

Overview of Raybestos Element3 Coated Rotor 66840FZN

The Raybestos Element3; Coated Rotor 66840FZN is engineered for reliable braking performance on select Ford, Jaguar, and Lincoln vehicles. Designed as a vented disc brake rotor, it offers consistent heat dissipation and durability for models including the Ford Thunderbird, Jaguar XJ8, and Lincoln LS.

• Vented disc brake rotor for improved cooling
• Overall height: 1.275 inches (32.400 mm)
• Outside diameter: 11.335 inches (287.900 mm)
• Mounting bolt hole quantity: 5 with 4.250 inch (107.950 mm) bolt circle diameter
• Center hole diameter: 2.538 inches (64.450 mm)
• Nominal thickness: 0.790 inches (20.050 mm)
• Discard thickness: 0.728 inches (18.500 mm)
• Conventional rotor type compatible with drum-in-hat setups

Product Line Details: Element3; Coated Rotor

The Element3; Coated Rotor line by Raybestos focuses on corrosion resistance and extended rotor life through a protective coating. This coating helps reduce rust buildup, maintaining rotor integrity and appearance over time. The 66840FZN rotor benefits from this coating, making it suitable for vehicles exposed to varying weather conditions while maintaining braking efficiency.

Technical Description and Specifications

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. With a nominal thickness of 0.790 inches and a discard thickness of 0.728 inches, it ensures safe operation within specified wear limits. The rotor’s overall height of 1.275 inches and outside diameter of 11.335 inches align with factory specifications for compatible Ford Thunderbird, Jaguar S-Type, and Lincoln Vanden Plas models. The 5-bolt mounting pattern with a 4.250 inch bolt circle diameter and a center hole diameter of 2.538 inches ensures precise fitment and secure installation.

Compatible Vehicles and Common Applications

• Ford Thunderbird
• Jaguar XJ8 and XJR
• Jaguar S-Type
• Lincoln LS and Vanden Plas

• Resolves rotor warping and vibration issues
• Addresses brake noise caused by rust or corrosion
• Replaces worn or undersized rotors to restore braking performance
• Improves heat management for consistent stopping power

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 0.728 inches to maintain safety standards. Use proper torque specifications for the 5 mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to optimize braking performance and rotor longevity.

Quality Assurance and Warranty

Raybestos Element3; Coated Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The protective coating enhances corrosion resistance, contributing to longer service life. While specific warranty details are not provided here, Raybestos typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.