OE Quality
60-Day Returns

Raybestos 56496R Disc Brake Rotor - Front
Overview of Raybestos R-Line Disc Brake Rotor 56496R
The Raybestos R-Line Disc Brake Rotor 56496R is engineered for reliable braking performance on Chevrolet and GMC heavy-duty vehicles. Designed specifically for models like the Chevrolet C3500, GMC P30, and P3500, this vented rotor meets precise specifications to maintain optimal stopping power and durability.
- Vented disc brake rotor for improved heat dissipation
- Outside diameter of 13.850 inches (351.8 mm)
- Nominal thickness of 1.430 inches (36.3 mm) with discard thickness at 1.366 inches (34.7 mm)
- Overall height of 2.935 inches (74.55 mm)
- Five mounting bolt holes with a bolt circle diameter of 6.339 inches (161 mm)
- Center hole diameter of 5.005 inches (127.15 mm)
- Conventional rotor type compatible with drum-in-hat setups
Detailed Specifications and Features
This Raybestos R-Line rotor 56496R is a vented disc brake rotor designed to enhance cooling and reduce brake fade during heavy use. The rotor’s 13.850-inch outside diameter and 1.430-inch nominal thickness provide a robust braking surface suitable for heavy-duty applications. The discard thickness of 1.366 inches ensures safe replacement intervals, maintaining braking efficiency and safety. With five mounting bolt holes arranged on a 6.339-inch bolt circle diameter, this rotor fits securely on Chevrolet C3500, GMC P30, and P3500 models. The 5.005-inch center hole diameter allows proper alignment and fitment on the hub assembly.
Raybestos R-Line Product Line
The R-Line by Raybestos is a product line focused on delivering dependable, application-specific brake components for commercial and heavy-duty vehicles. This line emphasizes precise fitment and consistent performance, making it suitable for demanding environments where braking reliability is critical. The 56496R rotor exemplifies the R-Line’s commitment to quality and durability for Chevrolet and GMC trucks.
Common Applications and Problem Solving
- Replacement for worn or warped rotors on Chevrolet C3500, GMC P30, and P3500
- Addresses brake fade caused by overheating during heavy loads
- Resolves vibration or pulsation issues due to rotor thickness variation
- Improves braking consistency in commercial and fleet vehicles
- Restores proper rotor dimensions for safe and effective braking
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness (1.366 inches) before installation
- Clean mounting surface and hub to prevent rotor runout
- Torque mounting bolts to manufacturer specifications for secure fitment
- Inspect brake pads and replace if worn to maintain optimal braking
- Check for proper rotor alignment with drum-in-hat configuration
Quality Assurance and Warranty
Raybestos R-Line rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship, providing confidence in the 56496R rotor’s durability and performance on Chevrolet and GMC heavy-duty trucks.
| Brand | Raybestos |
|---|---|
| Part Number | 56496R |
| Position | R-Line, Front |
| Center Hole Diameter | 5.005 |
| Center Hole Diameter | 127.150 |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Discard Thickness | 1.366 |
| Discard Thickness | 34.700 |
| Mounting Bolt Hole Circle Diameter | 6.339 |
| Mounting Bolt Hole Circle Diameter | 161.000 |
| Mounting Bolt Hole Diameter | 6.339 |
| Mounting Bolt Hole Diameter | 161.000 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 1.430 |
| Nominal Thickness | 36.300 |
| Outside Diameter | 13.850 |
| Outside Diameter | 351.800 |
| Overall Height | 2.935 |
| Overall Height | 74.550 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 5 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | GMC | C3500 | Front | Replaces 56496RGS; Raybestos R-Line |
| 1999 | Chevrolet | P30 | Front | R-Line |
| 1999 | GMC | C3500 | Front | Replaces 56496RGS; Raybestos R-Line |
| 1999 | GMC | P3500 | Front | R-Line |
| 1998 | Chevrolet | P30 | Front | R-Line |
| 1998 | GMC | C3500 | Front | Replaces 56496RGS; Raybestos R-Line |
| 1998 | GMC | P3500 | Front | R-Line |
| 1997 | Chevrolet | P30 | Front | R-Line |
| 1997 | GMC | C3500 | Front | Replaces 56496RGS; Raybestos R-Line |
| 1997 | GMC | P3500 | Front | R-Line |
| 1996 | GMC | C3500 | Front | Replaces 56496RGS; Raybestos R-Line |
| 1995 | GMC | C3500 | Front | Replaces 56496RGS; 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.