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DuraGo BR900900 Disc Brake Rotor - Rear
| Brand | DuraGo BR900900 |
|---|---|
| Position | Rear |
| ABS Tone Ring Included | No |
| Center Hole Diameter | 2.68 |
| Center Hole Diameter | 68 |
| Construction | Full Cast |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Cross Drilled | No |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Discard Thickness | 0.85 |
| Discard Thickness | 21.5 |
| Material | Cast Iron |
| Mounting Bolt Hole Circle Diameter | 4.72 |
| Mounting Bolt Hole Circle Diameter | 120 |
| Mounting Bolt Hole Diameter | 0.64 |
| Mounting Bolt Hole Diameter | 16.3 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 0.91 |
| Nominal Thickness | 23 |
| Outside Diameter | 12.4 |
| Outside Diameter | 315 |
| Overall Height | 1.89 |
| Overall Height | 48 |
| Rust Resistant Coating | No |
| Slotted | No |
| Solid Or Vented Type Rotor | Vented |
| Fits | Cadillac, Chevrolet, Buick, and Saab · 59 vehicles |
OE-style fit. Manufactured to meet fit, form, and function requirements.
Vented design. Helps air flow through the rotor for more consistent braking.
Cast iron construction. Full-cast rotor built for dependable braking performance.
Cross-references Four Seasons 55179, Parts Authority PRT6073 and Raybestos Brakes 580771 for the same application. See all 12.
DuraGo BR900900 Rear Disc Brake Rotor
The DuraGo BR900900 is a rear vented disc brake rotor built from cast iron with a full cast construction for vehicles that use a 315 mm outside diameter rotor. It is a direct-fit replacement for a wide range of rear brake applications, including Chevrolet Camaro, Cadillac CT5, and Cadillac XTS models.
Engineered for fit, form, and function, this rotor reflects DuraGo’s long-running aftermarket brake program and ISO-certified manufacturing standards. The BR900900 is a practical choice for drivers and technicians replacing worn rear rotors on select Buick, Cadillac, Chevrolet, and Saab vehicles.
Key Features
- Part number BR900900 rear disc brake rotor
- Cast iron, full cast construction
- Vented rotor design for rear brake applications
- Non-directional brake surface
- Outside diameter: 315 mm (12.4 in.)
- Nominal thickness: 23 mm (0.91 in.)
- Discard thickness: 21.5 mm (0.85 in.)
- 5-bolt mounting pattern with 120 mm bolt circle diameter
- Center hole diameter: 68 mm
- No cross-drilling, no slots, no ABS tone ring
Detailed Description
DuraGo BR900900 is a conventional rear brake rotor for select applications that require a vented, non-directional braking surface and a 5-lug mounting pattern. It is commonly used on rear brake service for 2016-2024 Chevrolet Camaro, 2020-2026 Cadillac CT5, 2014-2020 Chevrolet Impala, and 2013-2019 Cadillac XTS models, along with other listed Buick, Cadillac, Chevrolet, and Saab vehicles. This rotor cross-references Raybestos Brakes 580771 for the same application.
Built from cast iron with a full cast design, the BR900900 provides the dimensional consistency needed for proper rotor replacement. The rotor’s 315 mm outside diameter, 23 mm nominal thickness, and 68 mm center hole diameter help ensure correct fitment on the specified rear brake systems.
Common Repair Uses
- Replacing worn rear brake rotors on Chevrolet Camaro, rear
- Correcting brake pulsation from rotor wear or thickness variation
- Restoring braking performance after rotor scoring or heat damage
- Servicing rear brake systems on Cadillac CT5, rear
- Addressing noise or vibration caused by rotor surface wear
Installation Notes
Verify rotor dimensions, bolt pattern, and rear axle application before installation. This rotor is listed for vented rear rotor applications on select Buick LaCrosse, Buick Regal, Chevrolet Malibu, Saab 9-5, and other supported models. Confirm that the vehicle does not require heavy-duty brakes on Cadillac XTS applications, and match the rotor to the correct rear brake configuration before service.
Quality Assurance
DuraGo manufactures brake rotors in ISO-certified factories and builds this part to meet fit, form, and function requirements for aftermarket brake service. The BR900900 is part of DuraGo’s brake drum and rotor program, developed for professional repair use and cataloged for first-to-market applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2026 | Cadillac | CT5 | — | — | — | Rear | — |
| 2025 | Cadillac | CT5 | — | — | — | Rear | — |
| 2024 | Cadillac | CT5 | — | — | — | Rear | — |
| 2024 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2023 | Cadillac | CT5 | — | — | — | Rear | — |
| 2023 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2022 | Cadillac | CT5 | — | — | — | Rear | — |
| 2022 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2021 | Cadillac | CT5 | — | — | — | Rear | — |
| 2021 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2020 | Cadillac | CT5 | — | — | — | Rear | — |
| 2020 | Cadillac | CT6 | — | — | — | Rear | — |
| 2020 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2020 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2020 | Chevrolet | Impala | — | — | — | Rear | — |
| 2019 | Cadillac | CT6 | — | — | — | Rear | — |
| 2019 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2019 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2019 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2019 | Chevrolet | Impala | — | — | — | Rear | — |
| 2018 | Cadillac | CT6 | — | — | — | Rear | — |
| 2018 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2018 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2018 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2018 | Chevrolet | Impala | — | — | — | Rear | — |
| 2017 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2017 | Cadillac | CT6 | — | — | — | Rear | — |
| 2017 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2017 | Chevrolet | Camaro | LS | — | — | Rear | — |
| 2017 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2017 | Chevrolet | Impala | — | — | — | Rear | — |
| 2016 | Buick | LaCrosse | — | — | — | Rear | Vented Rear Rotors |
| 2016 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2016 | Cadillac | CT6 | — | — | — | Rear | — |
| 2016 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2016 | Chevrolet | Camaro | LT | — | — | Rear | — |
| 2016 | Chevrolet | Impala | — | — | — | Rear | — |
| 2015 | Buick | LaCrosse | — | — | — | Rear | Vented Rear Rotors |
| 2015 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2015 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2015 | Chevrolet | Impala | — | — | — | Rear | — |
| 2015 | Chevrolet | Malibu | — | — | — | Rear | Vented Rear Rotors |
| 2014 | Buick | LaCrosse | — | — | — | Rear | Vented Rear Rotors |
| 2014 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2014 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2014 | Chevrolet | Impala | — | — | — | Rear | — |
| 2014 | Chevrolet | Malibu | — | — | — | Rear | Vented Rear Rotors |
| 2013 | Buick | LaCrosse | — | — | — | Rear | Vented Rear Rotors |
| 2013 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2013 | Cadillac | XTS | — | — | — | Rear | 5 Stud Wheels; except Heavy Duty Brakes |
| 2013 | Chevrolet | Malibu | — | — | — | Rear | Vented Rear Rotors |
| 2012 | Buick | LaCrosse | — | 3.6L | V6 | Rear | — |
| 2012 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2011 | Buick | LaCrosse | — | — | — | Rear | — |
| 2011 | Buick | Regal | — | — | — | Rear | Vented Rear Rotors |
| 2011 | Saab | 9-5 | — | — | — | Rear | Vented Rear Rotors |
| 2010 | Buick | Allure | — | — | — | Rear | — |
| 2010 | Buick | LaCrosse | — | — | — | Rear | — |
| 2010 | Saab | 9-5 | — | — | — | Rear | Vented Rear Rotors |
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