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DuraGo BR55125 Disc Brake Rotor - Rear
| Brand | DuraGo BR55125 |
|---|---|
| Position | Rear |
| ABS Tone Ring Included | No |
| Center Hole Diameter | 2.78 |
| Center Hole Diameter | 70.7 |
| Construction | Full Cast |
| Conventional Or Drum-In-Hat Type Rotor | Drum-In-Hat |
| Cross Drilled | No |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Discard Thickness | 0.35 |
| Discard Thickness | 9 |
| Material | Cast Iron |
| Mounting Bolt Hole Circle Diameter | 4.53 |
| Mounting Bolt Hole Circle Diameter | 115 |
| Mounting Bolt Hole Diameter | 0.57 |
| Mounting Bolt Hole Diameter | 14.5 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 0.44 |
| Nominal Thickness | 11.2 |
| Outside Diameter | 10.94 |
| Outside Diameter | 278 |
| Overall Height | 1.98 |
| Overall Height | 50.3 |
| Rust Resistant Coating | No |
| Slotted | No |
| Solid Or Vented Type Rotor | Solid |
| Fits | Chevrolet and Buick · 11 vehicles |
Cast iron construction. Full cast design for dependable braking performance.
Non-directional surface. Helps promote even contact and consistent stopping.
Professional-grade rotor. Manufactured in ISO certified factories to fit, form, and function requirements.
Cross-references Dynomax 55125, Parts Authority PRT5628 and Raybestos Brakes 580401 for the same application. See all 11.
DuraGo BR55125 Rear Disc Brake Rotor
The DuraGo BR55125 is a rear drum-in-hat disc brake rotor built from cast iron with a full cast construction for consistent braking performance. It is engineered for direct fitment on select Chevrolet, Buick, and Pontiac applications, including rear brake service on the Chevrolet Impala, Monte Carlo, Buick Allure, and Buick LaCrosse.
Key Features
- Cast iron rotor with full cast construction
- Solid, non-directional brake surface
- Drum-in-hat rotor design for rear brake applications
- Outside diameter: 10.94 in. / 278 mm
- Nominal thickness: 0.44 in. / 11.2 mm
- Discard thickness: 0.35 in. / 9 mm
- Overall height: 1.98 in. / 50.3 mm
- 5-bolt mounting pattern with 4.53 in. / 115 mm bolt circle
- Center hole diameter: 2.78 in. / 70.7 mm
- Non-slotted and non-cross-drilled design
Detailed Description
DuraGo BR55125 is a rear disc brake rotor for vehicles that use a drum-in-hat rear brake setup. Its cast iron, full cast construction supports stable braking characteristics, while the solid, non-directional surface is suited for everyday brake service and rotor replacement. This rotor measures 10.94 inches in outside diameter and uses a 5-lug mounting pattern with a 115 mm bolt circle, making it a direct-match service part for the listed applications. This part cross-references Raybestos Brakes 580401 for the same application.
Fits 2006-2010 Chevrolet Impala, rear. Fits 2006-2007 Chevrolet Monte Carlo, rear. Fits 2008-2009 Buick Allure, rear. Fits 2008-2009 Buick LaCrosse, rear. The BR55125 is also referenced by Dynomax 55125.
Common Brake Service Uses
- Replacing a worn rear rotor with thickness below service limits
- Correcting brake pulsation caused by rotor wear or uneven surface condition
- Restoring rear brake contact surface after scoring or heat checking
- Addressing noise or vibration during rear brake operation
- Servicing rear brake components on Chevrolet Impala, Monte Carlo, Buick Allure, and Buick LaCrosse models
Installation Notes and Tips
Verify rotor dimensions, hub fit, and brake pad condition before installation. Clean the hub mounting surface thoroughly to help prevent runout-related brake pulsation. Because this rotor is not cross-drilled, slotted, or coated for rust resistance, proper brake service and corrosion prevention practices are important during installation and maintenance.
Quality Assurance
DuraGo has more than 45 years of aftermarket manufacturing experience and produces brake components through ISO-certified factories focused on fit, form, and function. The BR55125 is part of DuraGo’s brake drum and rotor program, which is built for professional repair use and cataloged for direct application matching.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Impala | — | — | Rear | — |
| 2009 | Buick | Allure | 5.3L | V8 | Rear | — |
| 2009 | Buick | LaCrosse | 5.3L | V8 | Rear | — |
| 2009 | Chevrolet | Impala | — | — | Rear | — |
| 2008 | Buick | Allure | 5.3L | V8 | Rear | — |
| 2008 | Buick | LaCrosse | 5.3L | V8 | Rear | — |
| 2008 | Chevrolet | Impala | — | — | Rear | — |
| 2007 | Chevrolet | Impala | — | — | Rear | — |
| 2007 | Chevrolet | Monte Carlo | — | — | Rear | — |
| 2006 | Chevrolet | Impala | — | — | Rear | — |
| 2006 | Chevrolet | Monte Carlo | — | — | Rear | — |
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