OE Quality
60-Day Returns

Raybestos 66844 Disc Brake Rotor - Front
Overview of Raybestos 66844 Disc Brake Rotor for Ford Mustang
The Raybestos Specialty - Street Performance disc brake rotor, part number 66844, is engineered for Ford Mustang models requiring reliable braking performance. This vented rotor is designed to maintain optimal heat dissipation and consistent stopping power under street driving conditions.
- Compatible with Ford Mustang vehicles
- Vented disc brake rotor design for improved cooling
- Overall diameter of 12.995 inches (330.05 mm)
- Nominal thickness of 1.105 inches (28.05 mm) with discard thickness at 1.039 inches (26.4 mm)
- Five mounting bolt holes with a 4.5 inch (114.3 mm) bolt circle diameter
- Center hole diameter of 2.798 inches (71.05 mm)
- Conventional rotor type with solid mounting
Detailed Product Description and Specifications
This Raybestos disc brake rotor, part number 66844, is part of the Specialty - Street Performance line, which focuses on delivering dependable braking components tailored for street-driven vehicles like the Ford Mustang. The rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade in everyday driving scenarios.
With an outside diameter of approximately 13 inches and a nominal thickness of 1.105 inches, this rotor meets OEM specifications for fit and function. The discard thickness is set at 1.039 inches, indicating when the rotor should be replaced to maintain safe braking performance. The rotor includes five mounting bolt holes arranged on a 4.5-inch bolt circle diameter, ensuring compatibility with the Mustang's hub assembly. The center hole diameter of 2.798 inches allows for proper hub fitment, and the overall height measures 1.715 inches, consistent with conventional rotor designs.
Applications and Problem Solving
- Replacement for worn or warped rotors on Ford Mustang models
- Improves heat management to reduce brake fade during street driving
- Restores proper rotor thickness for consistent braking performance
- Addresses vibration or pulsation issues caused by uneven rotor surfaces
- Compatible upgrade for maintaining OEM braking specifications
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness before installation
- Clean rotor surface and hub mounting area to prevent runout
- Torque mounting bolts to manufacturer specifications for secure fitment
- Inspect brake pads and calipers during rotor replacement for optimal system performance
- Follow proper bedding-in procedures after installation to maximize rotor life
Quality Assurance and Warranty
Raybestos Specialty - Street Performance rotors are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details for part number 66844 should be confirmed with the supplier, Raybestos products typically come with a limited warranty covering defects in materials and workmanship. This ensures confidence in the rotor's reliability for Ford Mustang brake system applications.
| Brand | Raybestos |
|---|---|
| Part Number | 66844 |
| Position | Specialty - Street Performance, Front |
| Center Hole Diameter | 2.798 |
| Center Hole Diameter | 71.050 |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Discard Thickness | 1.039 |
| Discard Thickness | 26.400 |
| Mounting Bolt Hole Circle Diameter | 4.500 |
| Mounting Bolt Hole Circle Diameter | 114.300 |
| Mounting Bolt Hole Diameter | 0.598 |
| Mounting Bolt Hole Diameter | 15.200 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 1.105 |
| Nominal Thickness | 28.050 |
| Outside Diameter | 12.995 |
| Outside Diameter | 330.050 |
| Overall Height | 1.715 |
| Overall Height | 43.550 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 5 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2004 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 2004 | Ford | Mustang | Mach 1 | Front | with 12-63/64in Diameter Rotor; Specialty - Street Performance |
| 2003 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 2003 | Ford | Mustang | Mach 1 | Front | with 12-63/64in Diameter Rotor; Specialty - Street Performance |
| 2001 | Ford | Mustang | GT Bullitt | Front | Specialty - Street Performance |
| 2001 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 2000 | Ford | Mustang | SVT Cobra R | Front | Specialty - Street Performance |
| 1999 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 1998 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 1997 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 1996 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 1995 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
| 1995 | Ford | Mustang | SVT Cobra R | Front | Specialty - Street Performance |
| 1994 | Ford | Mustang | SVT Cobra | Front | Specialty - Street Performance |
* 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.