/live/media/PR/PR_BR5577_Fro.jpg)
DuraGo BR5577 Disc Brake Rotor and Hub Assembly - Front
| Brand | DuraGo BR5577 |
|---|---|
| Position | Front |
| ABS Tone Ring Included | Yes |
| Cross Drilled | No |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Discard Thickness | 0.96 |
| Discard Thickness | 24.5 |
| Inner Bearing Cup Included | Yes |
| Mounting Bolt Hole Circle Diameter | 5 |
| Mounting Bolt Hole Circle Diameter | 127 |
| Nominal Thickness | 1.04 |
| Nominal Thickness | 26.3 |
| Outer Bearing Cup Included | Yes |
| Overall Height | 4.65 |
| Overall Height | 118 |
| Rotor Outside Diameter | 11.87 |
| Rotor Outside Diameter | 301.5 |
| Rust Resistant Coating | No |
| Slotted | No |
| Solid Or Vented Type Rotor | Vented |
| Stud Quantity | 5 |
| Stud Thread Size | M12 x 1.5 |
| Wheel Studs Included | Yes |
| Fits | Buick, Cadillac, Chevrolet, and Oldsmobile · 29 vehicles |
Vented rotor design. Promotes efficient airflow for more consistent braking performance.
ABS tone ring included. Adds integrated sensing support in one assembly.
Bearing cups included. Helps simplify installation with key components already in place.
Cross-references Atlantic Automotive Engineering 5577, Dorman - HELP 56128 and Parts Authority PRT5012 for the same application. See all 10.
DuraGo BR5577 Front Disc Brake Rotor and Hub Assembly
The DuraGo BR5577 is a front disc brake rotor and hub assembly built for select full-size GM applications, including Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala. It combines rotor, hub, bearing cups, wheel studs, and an ABS tone ring in one service part for direct front-end brake replacement.
Key Features
- Front disc brake rotor and hub assembly for select 1991-1996 vehicles
- Vented rotor design with a 11.87 in. (301.5 mm) outside diameter
- Nominal thickness: 1.04 in. (26.3 mm); discard thickness: 0.96 in. (24.5 mm)
- 5-stud hub pattern with M12 x 1.5 stud thread size
- ABS tone ring included for vehicles equipped with wheel speed sensing
- Inner bearing cup and outer bearing cup included
- Wheel studs included
- Non-directional brake surface for consistent pad contact
Detailed Description
DuraGo BR5577 is manufactured by ISO-certified factories and reflects the brand’s long-running focus on aftermarket brake components with accurate cataloging and fit, form, and function requirements. This front rotor and hub assembly is engineered for service on 1991-1996 Buick Roadmaster, 1993-1996 Cadillac Fleetwood, 1991-1996 Chevrolet Caprice, and 1994-1996 Chevrolet Impala, along with related front applications listed in the fitment data. The vented rotor design supports heat management during braking, while the integrated hub, bearing cups, studs, and ABS tone ring simplify front brake service on the correct application.
This part cross-references Dorman - HELP 56128 and Atlantic Automotive Engineering 5577 for the same application. The BR5577 part number is also used in interchange listings for related replacement sourcing.
What It Helps Address
- Front brake pulsation caused by rotor wear or thickness variation
- Noise or vibration from a worn rotor and hub assembly
- ABS warning concerns related to a damaged or missing tone ring
- Loose or worn wheel stud service on the front hub
- Front-end brake service on vehicles requiring a complete rotor and hub unit
Installation Notes and Tips
Verify rotor diameter, stud pattern, bearing cup configuration, and ABS tone ring requirements before installation. This assembly is listed for front positions only, and one fitment note applies to 1991-1992 Cadillac Brougham with a 2 inch wide rear shoe. Confirm pad condition, bearing condition, and hub mounting surfaces during brake service to help ensure proper rotor seating and braking performance. For fitment-specific service, use BR5577 only on the listed Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala front applications.
Quality Assurance
DuraGo manufactures this brake rotor and hub assembly through ISO-certified factories and builds to meet fit, form, and function requirements for the listed applications. The brand’s brake program is positioned for professional repair use with attention to catalog accuracy and consistent part specification.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1996 | Buick | Roadmaster | Front | — |
| 1996 | Cadillac | Fleetwood | Front | — |
| 1996 | Chevrolet | Caprice | Front | — |
| 1996 | Chevrolet | Impala | Front | — |
| 1995 | Buick | Roadmaster | Front | — |
| 1995 | Cadillac | Fleetwood | Front | — |
| 1995 | Chevrolet | Caprice | Front | — |
| 1995 | Chevrolet | Impala | Front | — |
| 1994 | Buick | Roadmaster | Front | — |
| 1994 | Cadillac | Fleetwood | Front | — |
| 1994 | Chevrolet | Caprice | Front | — |
| 1994 | Chevrolet | Commercial Chassis | Front | — |
| 1994 | Chevrolet | Impala | Front | — |
| 1993 | Buick | Roadmaster | Front | — |
| 1993 | Cadillac | Fleetwood | Front | — |
| 1993 | Chevrolet | Caprice | Front | — |
| 1993 | Chevrolet | Commercial Chassis | Front | — |
| 1992 | Buick | Roadmaster | Front | — |
| 1992 | Cadillac | Brougham | Front | 2 Inch Wide Rear Shoe |
| 1992 | Chevrolet | Caprice | Front | — |
| 1992 | Chevrolet | Commercial Chassis | Front | — |
| 1992 | Oldsmobile | Custom Cruiser | Front | — |
| 1992 | Oldsmobile | Cutlass Cruiser | Front | — |
| 1991 | Buick | Roadmaster | Front | — |
| 1991 | Cadillac | Brougham | Front | 2 Inch Wide Rear Shoe |
| 1991 | Chevrolet | Caprice | Front | — |
| 1991 | Chevrolet | Commercial Chassis | Front | — |
| 1991 | Oldsmobile | Custom Cruiser | Front | — |
| 1991 | Oldsmobile | Cutlass Cruiser | Front | — |
| No rows match your filter. | ||||