# CMX K8C-103539 Rear Disc Brake Kit for 2020-2025 Hyundai Sonata, Kia Niro EV, Kia K5

### 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 CMX K8C-103539 is a vehicle-specific disc brake kit designed for compatible applications for 2020-2025 Hyundai, Kia Sonata, Niro EV, K5.

### Key Features

-   Exclusive CeramiX™ High-Density Ceramic compound provides optimal braking performance (Stable Friction, High Temperature Stability, Extended Lifetime
-   Engineered with carbon-enhanced XCast™ (G3000) iron castings to achieve an optimal wear resistance, tensile strength and steel hardness providing unmatched
-   Rubberized Multi-Layer Stainless Steel Shim reduces noise, vibration, and harshness for complete quietness
-   100% Precision Spin and Mill-Balanced for smoother stopping and zero vibration at any speed
-   Engineered with High Carbon SteelRX™ alloy (Pressure Resistant, Thermal Conductive) and dipped in an Anti-Rust Black Paint to increase durability

### Vehicle Fitment

**Fitment Position:** Rear

**Fitment Summary:** 2020-2025 Hyundai, Kia Sonata, Niro EV, K5

**Position:** Rear

-   2024-2025 Hyundai Sonata — Position: Rear; Fitment Precision: Naturally Aspirated
-   2023 Hyundai Sonata — Position: Rear; Fitment Precision: Hybrid Limited/Hybrid SEL/Hybrid Ultimate/Hybrid Blue and with 2.0L
-   2023 Hyundai Sonata — Position: Rear; Fitment Precision: Limited/Sport/SEL Plus and with 1.6L
-   2023 Hyundai Sonata — Position: Rear; Fitment Precision: Preferred/SE/SEL and with 2.5L and Naturally Aspirated
-   2023-2025 Kia Niro EV — Position: Rear
-   2022 Hyundai Sonata — Position: Rear; Fitment Precision: Preferred/SE/SEL
-   2021 Hyundai Sonata — Position: Rear; Fitment Precision: Limited/Hybrid Limited/SEL Plus/Hybrid SEL/Hybrid Ultimate/Hybrid Blue/SE/SEL
-   2021-2024 Kia K5 — Position: Rear; Fitment Precision: 1.6L
-   2020 Hyundai Sonata — Position: Rear

### FAQ

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

**What part number is this?**  
The listed part number is K8C-103539.

**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 Sonata
-   Disc Brake Kit for Hyundai Sonata
-   K8C-103539 fitment
-   CMX Disc Brake Kit
-   Rear Disc Brake Kit
-   2020 Hyundai Sonata Disc Brake Kit

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2024

Hyundai

Sonata

Rear

Naturally Aspirated

2025

Hyundai

Sonata

Rear

Naturally Aspirated

2023

Hyundai

Sonata

Rear

Hybrid Limited/Hybrid SEL/Hybrid Ultimate/Hybrid Blue and with 2.0L

2023

Hyundai

Sonata

Rear

Limited/Sport/SEL Plus and with 1.6L

2023

Hyundai

Sonata

Rear

Preferred/SE/SEL and with 2.5L and Naturally Aspirated

2023

Kia

Niro EV

Rear

2024

Kia

Niro EV

Rear

2025

Kia

Niro EV

Rear

2022

Hyundai

Sonata

Rear

Preferred/SE/SEL

2021

Hyundai

Sonata

Rear

Limited/Hybrid Limited/SEL Plus/Hybrid SEL/Hybrid Ultimate/Hybrid Blue/SE/SEL

## Details

- **Price:** 110.05 CAD
- **Vendor:** CMX
- **Type:** Disc Brake Kit
- **Tags:** 2021 Hyundai Sonata, 2022 Hyundai Sonata, 2023 Hyundai Sonata, 2023 Kia Niro EV, 2024 Hyundai Sonata, 2024 Kia Niro EV, 2025 Hyundai Sonata, 2025 Kia Niro EV, Automotive Parts, CMX, CMX K8C-103539, Daily Driver, Direct Replacement, Disc Brake Kit, Disc Rotors and Ceramic Brake Pads Kit, K8C-103539, Rear, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 110.05 CAD | In stock |

## Images

- CMX K8C-103539 Disc Brake Kit for 2020-2025 Hyundai Sonata, Kia Niro EV, Kia K5 - Rear product image

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/cmx-k8c-103539-disc-brake-kit-for-2020-2025-hyundai-sonata-kia-niro-ev-kia-k5-rear-k8c-103539)
> Updated: 2026-06-03