Raybestos 66798 Disc Brake Rotor - Front

Overview of Raybestos 66798 Disc Brake Rotor

The Raybestos Specialty - Truck disc brake rotor, part number 66798, is engineered for heavy-duty performance on Ford F-250 Super Duty and F-350 Super Duty trucks. Designed to meet the demands of truck applications, this vented rotor ensures reliable braking under load.

• Compatible with Ford F-250 Super Duty and F-350 Super Duty models
• Vented disc brake rotor for improved heat dissipation
• Overall height: 3.660 inches (92.950 mm)
• Outside diameter: 14.530 inches (369.050 mm)
• Nominal thickness: 1.495 inches (37.950 mm)
• Discard thickness: 1.417 inches (36.000 mm)
• 8 mounting bolt holes with 0.636 inch (16.150 mm) diameter
• Center hole diameter: 5.085 inches (129.150 mm)
• Conventional rotor type with 8 stud/lug holes

Detailed Product Description

The Raybestos 66798 disc brake rotor is part of the Specialty - Truck product line, which focuses on components designed specifically for truck applications requiring durability and consistent braking performance. This rotor features a vented design that helps dissipate heat more effectively during heavy braking, reducing the risk of brake fade. With an outside diameter of 14.530 inches and a nominal thickness of 1.495 inches, it provides a robust braking surface suitable for the weight and demands of Ford Super Duty trucks.

The rotor’s overall height measures 3.660 inches, and it includes 8 mounting bolt holes arranged on a 6.693 inch (170.000 mm) bolt circle diameter, ensuring proper fitment and secure installation. The center hole diameter of 5.085 inches allows for precise alignment on the hub. The conventional rotor design is compatible with standard brake systems on the F-250 and F-350 Super Duty models.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford F-250 Super Duty and F-350 Super Duty trucks
• Addresses brake fade caused by overheating during heavy towing or hauling
• Resolves vibration or pulsation issues due to uneven rotor thickness
• Improves braking consistency and safety under demanding truck conditions
• Suitable for restoring factory-level braking performance

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness of 1.417 inches before installation
• Clean mounting surfaces and check hub for rust or debris to ensure proper rotor seating
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to maintain optimal braking performance
• Perform a test drive to verify proper brake operation after installation

Quality Assurance and Warranty

Raybestos Specialty - Truck rotors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 66798 are not provided here, Raybestos products typically come with a limited warranty against defects in material and workmanship. Users should consult the product packaging or Raybestos documentation for exact warranty terms.