Raybestos 680394 Disc Brake Rotor - Rear

Overview of Raybestos 680394 Disc Brake Rotor

The Raybestos Specialty - Truck 680394 disc brake rotor is engineered for heavy-duty performance on Ford F-250 Super Duty and F-350 Super Duty trucks. Designed to meet specific thickness and mounting requirements, this rotor ensures reliable braking under demanding conditions.

• Compatible with Ford F-250 Super Duty and F-350 Super Duty models
• Drum-in-hat type rotor for integrated parking brake functionality
• Nominal thickness of 1.340 inches (34.050 mm) with discard thickness at 1.280 inches (32.500 mm)
• Mounting bolt hole circle diameter of 5.000 inches (127.000 mm)
• Precision-engineered mounting bolt hole diameter of 5.000 inches (127.000 mm)

Detailed Product Specifications

This disc brake rotor, part number 680394, is part of the Raybestos Specialty - Truck line, which focuses on components tailored for truck applications requiring durability and precise fitment. The drum-in-hat design integrates the parking brake drum within the rotor, reducing the need for separate components and simplifying installation. The rotor's nominal thickness of 1.340 inches (34.050 mm) provides a solid braking surface, while the discard thickness of 1.280 inches (32.500 mm) indicates the minimum safe thickness before replacement is necessary. The mounting bolt hole circle diameter and bolt hole diameter both measure 5.000 inches (127.000 mm), ensuring compatibility with the specified Ford 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 pulsation caused by uneven rotor thickness
• Restores proper parking brake function with integrated drum-in-hat design
• Prevents brake fade under heavy load conditions
• Ensures consistent braking performance for towing and hauling tasks

Installation Notes and Tips

When installing the Raybestos 680394 rotor, verify the rotor thickness before mounting to ensure it meets the nominal thickness specifications. Use proper torque settings on mounting bolts to avoid rotor distortion. The drum-in-hat design requires attention to parking brake components during installation to maintain proper function. It is recommended to inspect related brake hardware and replace as necessary to ensure optimal performance.

Quality Assurance and Warranty

Raybestos Specialty - Truck rotors are manufactured to meet strict quality standards for durability and fitment. While specific warranty details for part number 680394 should be confirmed with the supplier, Raybestos products typically come with a limited warranty against defects in material and workmanship, providing confidence in the rotor's reliability for Ford F-250 Super Duty and F-350 Super Duty applications.