# Transit Auto K8T-104520 Disc Brake Kit for 2019-2023 Toyota GR Supra, BMW M440i, BMW M440i xDrive & more - Rear

### Performance Overview

Transit Auto offers the most comprehensive and highest-quality replacement kits on the market. Thanks to our cutting-edge AI, in-house product team, and proprietary fitment data, we are able to build and deliver the most accurate kits on the market. All our kits include the highest-quality parts on the market, sourced directly by Transit and its sub-brands. Backed by over 50 years of experience and with in-house quality assurance, every customer Transit Auto K8T-104520 is a vehicle-specific disc brake kit designed for compatible applications for 2019-2023 Toyota GR Supra, BMW M440i, BMW M440i xDrive & more.

### Key Features

-   Kit includes: 2x Disc Rotor 1x Brake Pad

### Package include:

-   2x Rear Disc Brake Rotor (Both Side) + 1x Rear Ceramic Brake Pad Set (Hardware Included)

### Vehicle Fitment

**Fitment Summary:** 2019-2023 Toyota, BMW GR Supra, M440i, M440i xDrive, M340i, M340i xDrive, 330i

**Position:** Rear

-   2023 Toyota GR Supra — Position: Rear; Fitment Precision: 2.0L; Note: With 345mm Diameter Rear Rotor
-   2021-2022 BMW M440i — Position: Rear; Note: With 345mm Diameter Rear Rotor
-   2021-2022 BMW M440i xDrive — Position: Rear; Note: With 345mm Diameter Rear Rotor
-   2020-2021 BMW M340i — Position: Rear; Note: With 345mm Diameter Rear Rotor
-   2020-2021 BMW M340i xDrive — Position: Rear; Note: With 345mm Diameter Rear Rotor
-   2019-2022 BMW 330i — Position: Rear; Note: With Blue Painted Calipers and With 345mm Diameter Rear 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 K8T-104520.

**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 Kit for Toyota GR Supra
-   2019-2023 Toyota GR Supra Disc Brake Kit
-   K8T-104520 fitment
-   Transit Auto Disc Brake Kit
-   Rear Disc Brake Kit

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2023

Toyota

GR Supra

Rear

2.0L

With 345mm Diameter Rear Rotor

2021

BMW

M440i

Rear

With 345mm Diameter Rear Rotor

2022

BMW

M440i

Rear

With 345mm Diameter Rear Rotor

2021

BMW

M440i xDrive

Rear

With 345mm Diameter Rear Rotor

2022

BMW

M440i xDrive

Rear

With 345mm Diameter Rear Rotor

2020

BMW

M340i

Rear

With 345mm Diameter Rear Rotor

2021

BMW

M340i

Rear

With 345mm Diameter Rear Rotor

2020

BMW

M340i xDrive

Rear

With 345mm Diameter Rear Rotor

2021

BMW

M340i xDrive

Rear

With 345mm Diameter Rear Rotor

2019

BMW

330i

Rear

With Blue Painted Calipers and With 345mm Diameter Rear Rotor

## Details

- **Price:** 200.18 CAD
- **Vendor:** Transit Auto
- **Type:** Disc Brake Kit
- **Tags:** 2.0L, 2019 BMW 330i, 2020 BMW M340i, 2020 BMW M340i xDrive, 2021 BMW M340i, 2021 BMW M340i xDrive, 2021 BMW M440i, 2021 BMW M440i xDrive, 2022 BMW M440i, 2022 BMW M440i xDrive, 2023 Toyota GR Supra, Automotive Parts, Daily Driver, Direct Replacement, Disc Brake Kit, K8T-104520, Rear, Transit Auto, Transit Auto K8T-104520, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 200.18 CAD | In stock |

## Images

- Transit Auto K8T-104520 Disc Brake Kit for 2019-2023 Toyota GR Supra, BMW M440i, BMW M440i xDrive & more - Rear product image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/transit-auto-k8t-104520-disc-brake-kit-for-2019-2023-toyota-gr-supra-bmw-m440i-bmw-m440i-xdrive-and-more-rear-k8t-104520)
> Updated: 2026-05-31