# CMX 8-782636 Rear Disc Brake Rotor for 2020-2024 Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD

### Performance Overview

As a leader in the Automotive Braking industry, CMX delivers unrivaled braking solutions that redefine performance, reliability, and safety for your vehicle. CMX offers a comprehensive range of cutting-edge brake components meticulously engineered to meet the demands of do-it-yourself customers, garages and large fleet operators. From high-performance brake pads and rotors, to durable brake drums, reliable brake wheel cylinders, state-of-the-art brake shoes and convenient brake kits, CMX has everything you need to elevate your vehicle's braking system. We delivers the highest standards of quality and reliability for your braking needs, enabling you to drive with confidence, precision, and peace of mind.This disc Brake Rotor is listed for 2020-2024 Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD. Please review the fitment chart before ordering.

### Key Features

-   Designed as a direct replacement disc Brake Rotor for compatible vehicle applications
-   Built for dependable daily driving performance and consistent fitment
-   Application-specific design helps support proper installation and function

### Package include:

-   1x Rear Disc Brake Rotor

### Vehicle Fitment

**Fitment Summary:** 2020-2024 Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD

**Position:** Rear

-   2020-2024 Chevrolet Silverado 3500 HD — Position: Rear; Note: With Dual Rear Wheels
-   2020-2024 GMC Sierra 3500 HD — Position: Rear; Note: With Dual Rear Wheels

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, fitment precision, and any notes using the compatibility list above before purchase.

**What part number is this?**  
The listed part number is 8-782636.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

### Common Searches

-   disc Brake Rotor for Chevrolet Silverado 3500 HD
-   2020-2024 Chevrolet Silverado 3500 HD disc Brake Rotor
-   8-782636 fitment
-   CMX disc Brake Rotor
-   Rear disc Brake Rotor
-   disc Brake Rotor for GMC Sierra 3500 HD

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2020

Chevrolet

Silverado 3500 HD

Rear

With Dual Rear Wheels

2021

Chevrolet

Silverado 3500 HD

Rear

With Dual Rear Wheels

2022

Chevrolet

Silverado 3500 HD

Rear

With Dual Rear Wheels

2023

Chevrolet

Silverado 3500 HD

Rear

With Dual Rear Wheels

2024

Chevrolet

Silverado 3500 HD

Rear

With Dual Rear Wheels

2020

GMC

Sierra 3500 HD

Rear

With Dual Rear Wheels

2021

GMC

Sierra 3500 HD

Rear

With Dual Rear Wheels

2022

GMC

Sierra 3500 HD

Rear

With Dual Rear Wheels

2023

GMC

Sierra 3500 HD

Rear

With Dual Rear Wheels

2024

GMC

Sierra 3500 HD

Rear

With Dual Rear Wheels

## Details

- **Price:** 115.04 CAD
- **Vendor:** CMX
- **Type:** Disc Brake Rotor
- **Tags:** 120.66083, 13512717, 177-1278, 2020 Chevrolet Silverado 3500 HD, 2020 GMC Sierra 3500 HD, 2020-2024 Chevrolet Silverado 3500 HD, 2020-2024 GMC Sierra 3500 HD, 2021 Chevrolet Silverado 3500 HD, 2021 GMC Sierra 3500 HD, 2022 Chevrolet Silverado 3500 HD, 2022 GMC Sierra 3500 HD, 2023 Chevrolet Silverado 3500 HD, 2023 GMC Sierra 3500 HD, 2024 Chevrolet Silverado 3500 HD, 2024 GMC Sierra 3500 HD, 248882636, 348882636, 55437, 650053, 748882636, 782636, 782636FZN, 782636R, 8-580895, 8-782636, 901894, 950489, AC90895, AI Readable Fitment, AR90895, BR901894, brake rotor, Brake Rotor fitment, Chevrolet Silverado 3500 HD, CMX, CMX 8-782636 Disc Brake Rotor, CMX Brake Rotor, CR90895, Disc Brake Rotor, Disc Brake Rotor for Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD, GMC Sierra 3500 HD Disc Brake Rotor, ONZ1312, PR90895, Q1782636, R66083, Rear, Rear Disc Brake Rotor for 2020 Chevrolet Silverado 3500 HD, replacement 8-782636 Disc Brake Rotor, replacement auto part, Rotor, vehicle fitment, YH720509, YH720509HC, YH720509P

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 115.04 CAD | In stock |

## Images

- CMX_Disc Brake Rotor_8-782636

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/rear-disc-brake-rotor-1-piece-only-for-gmc-sierra-3500-hd-chevrolet-silverado)
> Updated: 2026-06-08