# CMX 8-981421 Front Disc Brake Rotor for 2014-2022 Mazda 3, 3 Sport, CX-3

### Performance Overview

The CMX 8-981421 Disc Brake Rotor is designed as a direct replacement part for compatible Mazda 3, 3 Sport, CX-3 applications. It is built to support reliable performance, proper fitment, and straightforward installation when replacing a worn or damaged component.

**Installation Position:** Front

### Key Features

-   Make sure to buy two (2)!
-   (One for left side and one for right side)
-   Engineered with carbon-enhanced XCast™ (G3000) iron castings to achieve an optimal wear resistance
-   tensile strength and steel hardness providing unmatched braking performance
-   100% Precision Spin and Mill-Balanced for smoother stopping and zero vibration at any speed

### Interchange Numbers

**Interchange / Cross Reference Part Numbers:** AC65045, AR65045, CR65045, PR65045, YH507590, YH507590C, YH507590P, 120.45086, BR901284, MA-8031, 2901284, ONZ0864, 2488821661, 3488821661, 7488821661, 901284, 610014, Q1981421, 981421FZN, 981421R, 981421, MA1015, AMA1015

Please compare these interchange numbers with your original part number and confirm vehicle compatibility before ordering.

### Vehicle Fitment

Review the vehicle fitment list below to confirm this part matches your vehicle before purchase.

-   2014 Mazda 3
-   2015 Mazda 3
-   2016 Mazda 3
-   2017 Mazda 3
-   2018 Mazda 3
-   2014 Mazda 3 Sport
-   2015 Mazda 3 Sport
-   2016 Mazda 3 Sport
-   2017 Mazda 3 Sport
-   2018 Mazda 3 Sport
-   2016 Mazda CX-3
-   2017 Mazda CX-3
-   2018 Mazda CX-3
-   2019 Mazda CX-3
-   2020 Mazda CX-3
-   2021 Mazda CX-3
-   2022 Mazda CX-3

### Vehicle Fitment Table

   

Year

Make

Model

Position

2014

Mazda

3

Front

2015

Mazda

3

Front

2016

Mazda

3

Front

2017

Mazda

3

Front

2018

Mazda

3

Front

2014

Mazda

3 Sport

Front

2015

Mazda

3 Sport

Front

2016

Mazda

3 Sport

Front

2017

Mazda

3 Sport

Front

2018

Mazda

3 Sport

Front

2016

Mazda

CX-3

Front

2017

Mazda

CX-3

Front

2018

Mazda

CX-3

Front

2019

Mazda

CX-3

Front

2020

Mazda

CX-3

Front

2021

Mazda

CX-3

Front

2022

Mazda

CX-3

Front

### FAQ

**Will this fit a 2014 Mazda 3?**  
Yes, this Disc Brake Rotor fits the vehicles listed in the Vehicle Fitment section above. Please confirm the year, make, model, and position before ordering.

**What position does this part fit?**  
This part is listed for the Front position on compatible vehicles.

**Can I use the interchange numbers to confirm compatibility?**  
Yes. Compare the interchange or cross-reference numbers shown above with your original part number, then verify the vehicle fitment before ordering.

**Is professional installation recommended?**  
Professional installation is recommended to help ensure proper fit, safe operation, and correct system performance.

### Common Searches

-   Disc Brake Rotor for Mazda 3, 3 Sport, CX-3
-   Front Disc Brake Rotor for 2014 Mazda 3
-   CMX 8-981421 Disc Brake Rotor
-   replacement 8-981421 Disc Brake Rotor
-   2014-2022 Mazda 3, 3 Sport, CX-3 Disc Brake Rotor

## Details

- **Price:** 45.54 CAD
- **Vendor:** CMX
- **Type:** Disc Brake Rotor
- **Tags:** 120.45086, 2014 Mazda 3, 2014 Mazda 3 Sport, 2014-2018 Mazda 3, 2014-2018 Mazda 3 Sport, 2014-2022 Mazda 3, 2015 Mazda 3, 2015 Mazda 3 Sport, 2016 Mazda 3, 2016 Mazda 3 Sport, 2016 Mazda CX-3, 2016-2022 Mazda CX-3, 2017 Mazda 3, 2017 Mazda 3 Sport, 2017 Mazda CX-3, 2018 Mazda 3, 2018 Mazda 3 Sport, 2018 Mazda CX-3, 2019 Mazda CX-3, 2020 Mazda CX-3, 2021 Mazda CX-3, 2022 Mazda CX-3, 2488821661, 2901284, 3 Sport, 3488821661, 610014, 7488821661, 8-981421, 901284, 981421, 981421FZN, 981421R, AC65045, AI Readable Fitment, AMA1015, AR65045, BR901284, brake rotor, Brake Rotor fitment, CMX, CMX 8-981421 Disc Brake Rotor, CMX Brake Rotor, CR65045, CX-3, CX-3 Disc Brake Rotor, Disc Brake Rotor, Disc Brake Rotor for Mazda 3, Front, Front Disc Brake Rotor for 2014 Mazda 3, MA-8031, MA1015, Mazda 3, Mazda 3 Sport, Mazda CX-3, ONZ0864, PR65045, Q1981421, replacement 8-981421 Disc Brake Rotor, replacement auto part, Rotor, vehicle fitment, YH507590, YH507590C, YH507590P

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 45.54 CAD | In stock |

## Images

- CMX_Disc Brake Rotor_8-981421

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/front-disc-brake-rotor-1-piece-only-for-mazda-3-cx-3-sport-8-981421)
> Updated: 2026-06-02