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Raybestos 66785R Disc Brake Rotor and Hub Assembly - Front
Overview of Raybestos R-Line Disc Brake Rotor and Hub Assembly
The Raybestos R-Line 66785R disc brake rotor and hub assembly is engineered for reliable braking performance on Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. Designed to meet precise specifications, this assembly ensures proper fit and function for heavy-duty applications.
- Compatible with Ford Excursion, F-250 Super Duty, and F-350 Super Duty
- Part number 66785R for accurate identification
- Includes disc brake rotor and hub assembly
- Mounting bolt hole quantity: 8 with 170 mm bolt circle diameter
- Nominal rotor thickness: 1.496 inches (38.000 mm)
- Discard thickness: 1.417 inches (36.000 mm)
- Mounting bolt hole diameter: 0.603 inches (15.300 mm)
- Stud/lug hole quantity: 8
Raybestos R-Line Product Line Details
The R-Line by Raybestos is a product line focused on delivering dependable brake components that meet or exceed OEM specifications. This disc brake rotor and hub assembly from the R-Line is designed to provide consistent braking performance and durability for Ford heavy-duty trucks, ensuring compatibility and ease of installation.
Technical Specifications and Features
This disc brake rotor and hub assembly features a nominal thickness of 1.496 inches (38.000 mm) and a discard thickness of 1.417 inches (36.000 mm), which are critical for maintaining safe braking performance and rotor longevity. The assembly includes eight mounting bolt holes arranged on a 170 mm bolt circle diameter, with each hole measuring 0.603 inches (15.300 mm) in diameter. The eight stud/lug holes provide secure attachment to the vehicle hub, ensuring stability under heavy loads.
Applications and Problem Solving
- Replacement for worn or warped rotors on Ford Excursion, F-250 Super Duty, and F-350 Super Duty
- Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
- Restores proper rotor thickness to maintain braking efficiency
- Solves hub assembly wear or damage affecting wheel alignment and safety
- Ensures secure mounting with correct bolt hole configuration
Installation Notes and Tips
When installing the Raybestos R-Line 66785R rotor and hub assembly, verify the bolt hole pattern and stud count to match your vehicle specifications. Ensure the rotor thickness is above the discard thickness limit before installation. Proper torque specifications should be followed for mounting bolts to avoid warping or loosening during operation. It is recommended to inspect related brake components such as pads and calipers during installation for optimal performance.
Quality Assurance and Warranty
Raybestos R-Line brake components are manufactured to meet stringent quality standards, ensuring durability and consistent performance. While specific warranty details for part number 66785R should be confirmed with the supplier, Raybestos typically offers coverage against manufacturing defects to provide confidence in product reliability.
| Brand | Raybestos |
|---|---|
| Part Number | 66785R |
| Position | R-Line, Front |
| Discard Thickness | 1.417 |
| Discard Thickness | 36.000 |
| Mounting Bolt Hole Circle Diameter | 6.693 |
| Mounting Bolt Hole Circle Diameter | 170.000 |
| Mounting Bolt Hole Diameter | 0.603 |
| Mounting Bolt Hole Diameter | 15.300 |
| Mounting Bolt Hole Quantity | 8 |
| Nominal Thickness | 1.496 |
| Nominal Thickness | 38.000 |
| Stud/Lug Hole Quantity | 8 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2003 | Ford | F-350 Super Duty | RWD | Front | w/ I-Beam Suspension; with Single Rear Wheels (SRW); R-Line |
| 2002 | Ford | Excursion | RWD | Front | R-Line |
| 2002 | Ford | F-250 Super Duty | RWD | Front | Rotor Diameter 13.03 IN; R-Line |
| 2002 | Ford | F-350 Super Duty | RWD | Front | with Twin I-Beam Axle; without Dual Rear Wheels; R-Line |
| 2001 | Ford | Excursion | RWD | Front | R-Line |
| 2001 | Ford | F-250 Super Duty | RWD | Front | w/ Twin I-Beam Suspension; R-Line |
| 2001 | Ford | F-350 Super Duty | RWD | Front | with Twin I-Beam Axle; without Dual Rear Wheels; R-Line |
| 2000 | Ford | Excursion | RWD | Front | R-Line |
| 2000 | Ford | F-250 Super Duty | RWD | Front | w/ Twin I-Beam Suspension; R-Line |
| 2000 | Ford | F-350 Super Duty | RWD | Front | w/ Twin I-Beam Suspension; with Single Rear Wheels (SRW); R-Line |
| 1999 | Ford | F-250 Super Duty | Front | w/ Twin I-Beam Suspension; R-Line | |
| 1999 | Ford | F-350 Super Duty | RWD | Front | with Single Rear Wheels (SRW); Raybestos R-Line |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.