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Raybestos 5048R Disc Brake Rotor - Front
| Brand | Raybestos 5048R |
|---|---|
| Position | Front |
| Discard Thickness | 1.465 |
| Discard Thickness | 37.200 |
| Nominal Thickness | 1.535 |
| Nominal Thickness | 39.000 |
| Overall Height | 3.080 |
| Overall Height | 78.250 |
| Outside Diameter | 12.875 |
| Outside Diameter | 327.000 |
| Mounting Bolt Hole Quantity | 8 |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 127.150 |
| Center Hole Diameter | 5.005 |
| Mounting Bolt Hole Circle Diameter | 165.100 |
| Mounting Bolt Hole Circle Diameter | 6.500 |
| Mounting Bolt Hole Diameter | 0.684 |
| Mounting Bolt Hole Diameter | 17.350 |
| Stud/Lug Hole Quantity | 8 |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Product line | R-Line |
| Fits | Chevrolet, Dodge, and GMC · 38 vehicles |
Vented design. Helps promote airflow for more consistent braking performance.
Conventional rotor. A straightforward disc brake rotor for standard replacement needs.
R-Line series. Raybestos line focused on dependable everyday braking parts.
Cross-references ATP 101630, Centric Parts 121.66003 and Centric Parts 320.66003F for the same application. See all 68.
Raybestos R-Line 5048R Front Brake Rotor
The Raybestos R-Line 5048R is a conventional vented disc brake rotor built for front axle applications on select Chevrolet, GMC, and Dodge trucks. With an outside diameter of 12.875 inches, 8-lug mounting, and a 127.150 mm center hole, it matches the dimensional requirements for listed heavy-duty fitments.
For shoppers searching for a front brake rotor for a Chevrolet K30, GMC K3500, or Dodge W350, this rotor provides the correct vented construction and hub interface details needed for direct replacement service. The Raybestos 5048R also cross-references DuraGo BR5563 for the same application.
Key Features
- Raybestos R-Line replacement rotor for front brake service
- Vented, conventional rotor design for listed truck applications
- 12.875 in. outside diameter and 3.080 in. overall height
- 8 mounting bolt holes with a 6.500 in. bolt circle diameter
- 127.150 mm center hole diameter for proper hub fitment
- Nominal thickness: 1.535 in. / discard thickness: 1.465 in.
- Fits 1977-1986 Chevrolet K30, front
- Fits 1979-1986 GMC K3500, front
- Fits 1987-1988 Chevrolet V30, front
- Fits 1987-1991 GMC V3500, front
- Fits 1989-1991 Chevrolet V3500, front
- Fits 1990-1993 Dodge W250, front
- Fits 1990-1993 Dodge W350, front
Detailed Description
The Raybestos R-Line 5048R front disc brake rotor is engineered for direct replacement on select full-size trucks that use an 8-lug, vented rotor setup. Its conventional rotor construction, 327 mm outside diameter, and specified bolt circle and center hole dimensions help ensure the correct fit on listed Chevrolet, GMC, and Dodge front brake applications. This part number is commonly searched as Raybestos 5048R for heavy-duty truck brake repair.
R-Line is Raybestos’ value-focused replacement line for everyday brake service, offering application-specific coverage for vehicles that need a straightforward rotor replacement without changing the original brake configuration. If you are servicing a Chevrolet K30 front brake rotor, GMC K3500 front rotor, or Dodge W250/W350 front rotor, the 5048R is built around the listed OE-style dimensions and fitment notes.
What It Helps Fix
- Front brake pulsation caused by rotor wear or thickness variation
- Brake noise related to worn or heat-affected rotor surfaces
- Reduced braking performance from a rotor below nominal thickness
- Vibration during stops on heavy-duty truck front axles
- Fitment issues when replacing the original vented 8-lug rotor
Installation Notes and Tips
Verify the vehicle’s axle, hub casting, and wheel configuration before installation. This rotor is listed for front use only and includes application notes such as no dual rear wheels on certain Chevrolet and GMC models, plus specific axle or hub casting requirements on Dodge W250 and W350 trucks. Confirm disc brake rotor dimensions, bolt circle, and center hole diameter against the original part before assembly.
For best results, inspect pads, calipers, wheel bearings, and hub surfaces during rotor replacement. Proper cleaning of the hub mounting face helps reduce runout concerns and supports even brake contact after installation.
Quality Assurance
Raybestos is a long-established brake parts brand with broad coverage in replacement braking components. The R-Line 5048R is built to match the listed fitment and dimensional specifications for front brake service on select Chevrolet, GMC, and Dodge trucks.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1993 | Dodge | W250 | Front | with 4500lb Axle(s); with Brake Rotor Casting # 100353; R-Line |
| 1993 | Dodge | W350 | Front | with Casting # 10264 on Hub; without Dual Rear Wheels; R-Line |
| 1992 | Dodge | W250 | Front | with 4500lb Axle(s); with Brake Rotor Casting # 100353; R-Line |
| 1992 | Dodge | W350 | Front | with Casting # 10264 on Hub; without Dual Rear Wheels; R-Line |
| 1991 | Chevrolet | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1991 | Dodge | W250 | Front | with 4500lb Axle(s); with Brake Rotor Casting # 100353; R-Line |
| 1991 | Dodge | W350 | Front | with Casting # 10264 on Hub; without Dual Rear Wheels; R-Line |
| 1991 | GMC | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1990 | Chevrolet | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1990 | Dodge | W250 | Front | with 4500lb Axle(s); with Brake Rotor Casting # 100353; R-Line |
| 1990 | Dodge | W350 | Front | with Casting # 10264 on Hub; without Dual Rear Wheels; R-Line |
| 1990 | GMC | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1989 | Chevrolet | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1989 | GMC | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1988 | Chevrolet | V30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1988 | GMC | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1987 | Chevrolet | V30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1987 | GMC | V3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1986 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1986 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1985 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1985 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1984 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1984 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1983 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1983 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1982 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1982 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1981 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1981 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1980 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1980 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1979 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1979 | GMC | K3500 | Front | Not compatible with dual rear wheels.; R-Line |
| 1978 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1978 | GMC | K35 | Front | Not compatible with dual rear wheels.; R-Line |
| 1977 | Chevrolet | K30 | Front | Not compatible with dual rear wheels.; R-Line |
| 1977 | GMC | K35 | Front | Not compatible with dual rear wheels.; R-Line |
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