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PowerStop AR82146SCR Disc Brake Rotor - Rear
| Brand | PowerStop AR82146SCR |
|---|---|
| Position | Rear |
| Discard Thickness | 0.85 |
| Discard Thickness | 21.50 |
| Nominal Thickness | 0.91 |
| Nominal Thickness | 23.10 |
| Balancing Type | Mill balanced |
| Construction | Full cast |
| Rust Resistant Coating | Yes |
| Overall Height | 1.90 |
| Overall Height | 48.30 |
| Outside Diameter | 12.41 |
| Outside Diameter | 315.20 |
| ABS Tone Ring Included | No |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Vented |
| Mounting Bolt Hole Circle Diameter | 120.00 |
| Mounting Bolt Hole Circle Diameter | 4.72 |
| Stud/Lug Hole Quantity | 5 |
| Product line | PowerStop - Rear Coated Hat and Edge Rotor |
| Fits | Buick, Cadillac, Chevrolet, and Saab · 53 vehicles |
OE-style replacement. Direct bolt-on design matches original equipment specifications for straightforward service.
Corrosion-resistant coating. Silver epoxy protects the hat, edge, and vanes from exposed rust-prone areas.
Vented full-cast rotor. Built for stable braking performance with a smooth friction surface and mill balance.
Cross-references 13 50 2199, 13501290 and 13501314 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
PowerStop AR82146SCR is a rear disc brake rotor built as a direct bolt-on replacement for original equipment applications. It combines a vented full-cast design with a smooth braking surface and a corrosion-resistant coated finish to help preserve appearance and performance.
Compatible with rear brake applications on the Cadillac CT5, Chevrolet Camaro, and Buick Regal, this rotor is engineered to match OE weight and vane count for proper fitment. The PowerStop rear coated hat and edge rotor line focuses on practical replacement value with corrosion protection where it matters most.
Key Features
- Direct bolt-on replacement for original equipment fitment
- Silver epoxy coating on the hat, outer edge, and vanes
- Vented full-cast rotor construction
- Smooth friction surface for consistent brake contact
- Mill balanced for rotational consistency
- Matches OE weight and vane count
Detailed Description
PowerStop AR82146SCR is a rear brake rotor designed for vehicles that use a 120 mm bolt circle and five lug holes. The rotor measures 12.41 inches in outside diameter, 0.91 inches nominal thickness, and 1.90 inches overall height, with a discard thickness of 0.85 inches. Its coated hat and edge design helps resist corrosion in exposed areas while maintaining a clean look behind alloy wheels.
This part cross-references Monroe Shocks & Struts (e.g., 13501290, 13501314) for the same application. It is a practical choice for rear brake service on the Cadillac CT6, Chevrolet Impala, and Buick LaCrosse, where OE-style dimensions and vented construction are important for correct replacement. The PowerStop AR82146SCR is also listed for the Chevrolet Malibu, Cadillac XTS, and Saab 9-5 rear brake applications.
What It Helps Address
- Corrosion on exposed rotor surfaces
- Brake pulsation caused by worn rotor thickness
- Reduced braking consistency from an aging rotor
- Visible rust buildup behind alloy wheels
- Fitment issues from non-matching OE dimensions
Installation Notes
Install as a rear brake rotor replacement using the vehicle’s original brake hardware and service procedures. Verify rotor dimensions, bolt circle, and lug hole count before installation. This rotor is not supplied with an ABS tone ring.
Quality Assurance
PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for confirmed fitment across listed applications.
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2024 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2024 | Chevrolet | Camaro | LT | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2023 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2023 | Chevrolet | Camaro | LS | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2022 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2022 | Chevrolet | Camaro | LS | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2021 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2021 | Chevrolet | Camaro | LT | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2020 | Cadillac | CT5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2020 | Chevrolet | Camaro | LT1 | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2020 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2019 | Cadillac | CT6 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2019 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2019 | Chevrolet | Camaro | LT | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2019 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2018 | Cadillac | CT6 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2018 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2018 | Chevrolet | Camaro | LS | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2018 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2017 | Buick | Regal | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2017 | Cadillac | CT6 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2017 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2017 | Chevrolet | Camaro | LT | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2017 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Buick | Regal | — | — | — | — | GAS | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Cadillac | CT6 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Chevrolet | Camaro | LT | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2016 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2015 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2015 | Buick | Regal | — | — | — | — | FLEX | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2015 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2015 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2015 | Chevrolet | Malibu | — | — | 2.0L | L4 | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2014 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2014 | Buick | Regal | — | — | — | — | GAS | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2014 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2014 | Chevrolet | Impala | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2014 | Chevrolet | Malibu | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2013 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2013 | Buick | Regal | — | — | — | — | FLEX | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2013 | Cadillac | XTS | — | Sedan | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2013 | Chevrolet | Malibu | — | — | 2.0L | L4 | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2012 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2012 | Buick | Regal | — | — | 2.0L | L4 | FLEX | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2011 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2011 | Buick | Regal | — | — | 2.0L | L4 | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2011 | Saab | 9-5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2010 | Buick | Allure | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2010 | Buick | LaCrosse | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
| 2010 | Saab | 9-5 | — | — | — | — | — | Rear | PowerStop - Rear Coated Hat and Edge Rotor |
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