/live/media/RS/RS_66823R_Fro.jpg)
OE Quality
60-Day Returns
Raybestos 66823R Disc Brake Rotor - Rear
Overview of Raybestos R-Line Disc Brake Rotor 66823R
The Raybestos R-Line Disc Brake Rotor 66823R is engineered for reliable braking performance on Ford trucks. Designed specifically for Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models, this rotor meets precise specifications to ensure proper fit and function.
- Part Number: 66823R
- Brand: Raybestos R-Line
- Type: 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
- Mounting Bolt Hole Diameter: 0.636 inches (16.15 mm)
- 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 R-Line disc brake rotor 66823R features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade under heavy load conditions. The drum-in-hat configuration integrates a parking brake drum within the rotor, providing a compact and efficient braking solution for Ford Super Duty trucks and the Excursion. With an outside diameter of 12.830 inches and a nominal thickness of 1.185 inches, this rotor is engineered to meet the exacting standards required for Ford F-250 and F-350 Super Duty models. The 8 mounting bolt holes and 8 lug holes ensure secure attachment and compatibility with factory hardware.
R-Line Product Line Information
The Raybestos R-Line product line focuses on delivering dependable replacement brake components that meet or exceed OEM specifications. The R-Line rotors are designed for durability and consistent performance, making them suitable for heavy-duty applications such as those found in Ford Super Duty trucks. This part number 66823R is part of the R-Line series, which emphasizes quality materials and precise manufacturing tolerances to maintain vehicle safety and braking efficiency.
Common Applications and Issues Addressed
- Replacement for worn or warped rotors on Ford Excursion and F-250/F-350 Super Duty trucks
- Resolves brake pulsation caused by uneven rotor thickness
- Addresses excessive brake noise due to rotor surface damage
- Improves heat dissipation to reduce brake fade during towing or heavy loads
- Restores proper parking brake function with integrated drum-in-hat design
Installation Notes and Tips
- Verify rotor dimensions and bolt pattern compatibility with your specific Ford model before installation
- Inspect hub surface for rust or debris to ensure proper rotor seating
- Torque mounting bolts to manufacturer specifications to avoid rotor warping
- Replace brake pads simultaneously to ensure even wear and optimal braking performance
- Check parking brake adjustment after installation due to drum-in-hat design
Quality Assurance and Warranty
Raybestos R-Line rotors are manufactured to meet strict quality control standards, ensuring consistent thickness and balanced construction. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Using part number 66823R guarantees compatibility and performance for Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty vehicles.
| Brand | Raybestos |
|---|---|
| Part Number | 66823R |
| Position | R-Line, Rear |
| Center Hole Diameter | 5.000 |
| Center Hole Diameter | 127.000 |
| Conventional Or Drum-In-Hat Type Rotor | Drum-In-Hat |
| Discard Thickness | 1.102 |
| Discard Thickness | 28.000 |
| Mounting Bolt Hole Circle Diameter | 6.693 |
| Mounting Bolt Hole Circle Diameter | 170.000 |
| Mounting Bolt Hole Diameter | 0.636 |
| Mounting Bolt Hole Diameter | 16.150 |
| Mounting Bolt Hole Quantity | 8 |
| Nominal Thickness | 1.185 |
| Nominal Thickness | 30.100 |
| Outside Diameter | 12.830 |
| Outside Diameter | 325.900 |
| Overall Height | 3.870 |
| Overall Height | 98.300 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 8 |
This part fits 26 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2008 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2007 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2006 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2005 | Ford | Excursion | Rear | R-Line |
| 2004 | Ford | Excursion | Rear | R-Line |
| 2004 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2004 | Ford | F-250 Super Duty | Rear | R-Line |
| 2004 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; R-Line |
| 2003 | Ford | Excursion | Rear | R-Line |
| 2003 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2003 | Ford | F-250 Super Duty | Rear | R-Line |
| 2003 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; R-Line |
| 2002 | Ford | Excursion | Rear | R-Line |
| 2002 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2002 | Ford | F-250 Super Duty | Rear | R-Line |
| 2002 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; R-Line |
| 2001 | Ford | Excursion | Rear | R-Line |
| 2001 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2001 | Ford | F-250 Super Duty | Rear | R-Line |
| 2001 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; R-Line |
| 2000 | Ford | Excursion | Rear | R-Line |
| 2000 | Ford | F-250 | Rear | Replaces 66823RGS; Raybestos R-Line |
| 2000 | Ford | F-250 Super Duty | Rear | R-Line |
| 2000 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; R-Line |
| 1999 | Ford | F-250 Super Duty | Rear | R-Line |
| 1999 | Ford | F-350 Super Duty | Rear | Not compatible with dual rear wheels.; 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.