Raybestos 66823 Disc Brake Rotor - Rear

Overview of Raybestos Specialty - Truck Disc Brake Rotor 66823

The Raybestos Specialty - Truck Disc Brake Rotor 66823 is engineered for heavy-duty performance on Ford trucks including the Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models. Designed to meet the demands of truck applications, this vented, drum-in-hat rotor offers reliable braking and durability under load.

• Vented disc brake rotor with drum-in-hat design
• Outside diameter: 12.830 inches (325.9 mm)
• Nominal thickness: 1.185 inches (30.1 mm)
• Discard thickness: 1.102 inches (28.0 mm)
• Overall height: 3.870 inches (98.3 mm)
• Mounting bolt hole quantity: 8 with 0.636 inch (16.15 mm) diameter
• Center hole diameter: 5.000 inches (127.0 mm)
• Mounting bolt hole circle diameter: 6.693 inches (170.0 mm)
• Stud/lug hole quantity: 8

Detailed Product Description

This Raybestos disc brake rotor, part number 66823, is specifically designed for Ford heavy-duty trucks such as the Excursion, F-250, F-250 Super Duty, and F-350 Super Duty. The rotor features a vented design to improve heat dissipation during braking, reducing the risk of brake fade under demanding conditions. The drum-in-hat configuration integrates a parking brake drum within the rotor, providing a compact and efficient braking solution for trucks requiring both disc and drum brake functions.

With an outside diameter of 12.830 inches and a nominal thickness of 1.185 inches, this rotor maintains structural integrity and consistent braking performance. The discard thickness of 1.102 inches indicates the minimum safe thickness before replacement is necessary, ensuring safety and reliability. The rotor’s mounting specifications, including eight bolt holes and a 5-inch center hole diameter, align with the OEM requirements for the specified Ford models.

Raybestos Specialty - Truck Product Line

The Specialty - Truck line from Raybestos focuses on components tailored for truck applications, emphasizing durability and performance under heavy loads. This product line addresses the unique braking needs of trucks like the Ford F-250 and F-350 Super Duty series, providing parts engineered to meet or exceed factory specifications. The 66823 rotor exemplifies this approach by combining vented rotor technology with a drum-in-hat design suitable for trucks requiring integrated parking brake functionality.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Ford Excursion and Super Duty trucks
• Improves braking performance under heavy load conditions
• Resolves brake noise and vibration caused by rotor wear
• Addresses overheating and brake fade in demanding driving scenarios
• Restores proper parking brake operation with integrated drum-in-hat design

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.102 inches) before installation
• Clean mounting surfaces to prevent uneven rotor seating
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Compatible with Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models

Quality Assurance and Warranty

Raybestos disc brake rotors are manufactured to meet strict quality standards for durability and performance. The Specialty - Truck line undergoes rigorous testing to ensure compatibility and reliability in heavy-duty truck applications. While specific warranty details for part number 66823 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.