# CMX KBC-100639 Disc Brake Caliper for 2012-2021 BMW 340i, BMW 340i GT xDrive, BMW 340i xDrive & more - Front

### 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 CMX KBC-100639 is a vehicle-specific disc brake caliper designed for compatible applications for 2012-2021 BMW 340i, BMW 340i GT xDrive, BMW 340i xDrive & more.

### Key Features

-   Kit includes: 2x Disc Brake Caliper

### Package include:

-   2x Front Disc Brake Caliper (Both Side)

### Vehicle Fitment

**Fitment Summary:** 2012-2021 BMW 340i, 340i GT xDrive, 340i xDrive, 230i, 230i xDrive, 328d, 328d xDrive, 330i, 330i GT xDrive, 330i xDrive and more

**Position:** Front

-   2018 BMW 340i — Position: Front; Note: With 312mm Diameter Front Rotor
-   2018-2019 BMW 340i GT xDrive — Position: Front; Note: With 312mm Diameter Front Rotor
-   2018 BMW 340i xDrive — Position: Front; Note: With 312mm Diameter Front Rotor
-   2017-2021 BMW 230i — Position: Front; Note: With 312mm Diameter Front Rotor
-   2017-2021 BMW 230i xDrive — Position: Front; Note: With 312mm Diameter Front Rotor
-   2017-2018 BMW 328d — Position: Front
-   2017-2018 BMW 328d xDrive — Position: Front
-   2017-2019 BMW 330i — Position: Front; Note: With 312mm Diameter Front Rotor
-   2017-2019 BMW 330i GT xDrive — Position: Front; Note: With 312mm Diameter Front Rotor
-   2017-2019 BMW 330i xDrive — Position: Front; Note: With 312mm Diameter Front Rotor

### FAQ

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

**What part number is this?**  
The listed part number is KBC-100639.

**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 Caliper for BMW 340i
-   2012-2021 BMW 340i Disc Brake Caliper
-   KBC-100639 fitment
-   CMX Disc Brake Caliper
-   Front Disc Brake Caliper

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2018

BMW

340i

Front

With 312mm Diameter Front Rotor

2018

BMW

340i GT xDrive

Front

With 312mm Diameter Front Rotor

2019

BMW

340i GT xDrive

Front

With 312mm Diameter Front Rotor

2018

BMW

340i xDrive

Front

With 312mm Diameter Front Rotor

2017

BMW

230i

Front

With 312mm Diameter Front Rotor

2018

BMW

230i

Front

With 312mm Diameter Front Rotor

2019

BMW

230i

Front

With 312mm Diameter Front Rotor

2020

BMW

230i

Front

With 312mm Diameter Front Rotor

2021

BMW

230i

Front

With 312mm Diameter Front Rotor

2017

BMW

230i xDrive

Front

With 312mm Diameter Front Rotor

## Details

- **Price:** 278.48 CAD
- **Vendor:** CMX
- **Type:** Disc Brake Caliper
- **Tags:** 2017 BMW 230i, 2017 BMW 230i xDrive, 2018 BMW 230i, 2018 BMW 340i, 2018 BMW 340i GT xDrive, 2018 BMW 340i xDrive, 2019 BMW 230i, 2019 BMW 340i GT xDrive, 2020 BMW 230i, 2021 BMW 230i, Automotive Parts, CMX, CMX KBC-100639, Daily Driver, Direct Replacement, Disc Brake Caliper, Front, KBC-100639, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 278.48 CAD | In stock |

## Images

- CMX KBC-100639 Disc Brake Caliper for 2012-2021 BMW 340i, BMW 340i GT xDrive, BMW 340i xDrive & more - Front product image

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/cmx-kbc-100639-disc-brake-caliper-for-2012-2021-bmw-340i-bmw-340i-gt-xdrive-bmw-340i-xdrive-and-more-front-kbc-100639)
> Updated: 2026-07-15