# Transit Auto K8A-108185 Rear Disc Brake Kit for 1999-2006 Kia Optima, Hyundai Sonata

### 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 K8A-108185 is a vehicle-specific disc brake kit designed for compatible applications for 1999-2006 Kia, Hyundai Optima, Sonata.

### Key Features

-   AmeriBRAKES pads are engineered with vehicle-optimized formulas matching OE specs for optimal braking
-   Exclusive MetalliX™ Low Resin Semi-Metallic compound provides unmatched braking performance (abrasive friction, high temperature tolerance, quicker compound
-   Engineered with carbon-enhanced XCast™ (G3000) iron castings to achieve an optimal wear resistance, tensile strength and steel hardness providing unmatched
-   Exclusive carbon enhanced materials to ensure optimal all-condition performance
-   Engineered with High Carbon SteelRX™ alloy (Pressure Resistant, Thermal Conductive) and dipped in an Anti-Rust Black Paint to improve durability

### Vehicle Fitment

**Fitment Position:** Rear

**Fitment Summary:** 1999-2006 Kia, Hyundai Optima, Sonata

**Position:** Rear

-   2006 Kia Optima — Position: Rear; Note: With 4 Lug Wheels
-   2005 Hyundai Sonata — Position: Rear; Note: To 02/28/05
-   2001-2005 Kia Optima — Position: Rear
-   2000-2004 Hyundai Sonata — Position: Rear
-   1999 Hyundai Sonata — Position: Rear; Fitment Precision: Disc rear brakes

### 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 K8A-108185.

**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 Optima
-   Disc Brake Kit for Kia Optima
-   K8A-108185 fitment
-   Transit Auto Disc Brake Kit
-   Rear Disc Brake Kit
-   1999 Kia Optima Disc Brake Kit

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2006

Kia

Optima

Rear

With 4 Lug Wheels

2005

Hyundai

Sonata

Rear

To 02/28/05

2001

Kia

Optima

Rear

2002

Kia

Optima

Rear

2003

Kia

Optima

Rear

2004

Kia

Optima

Rear

2005

Kia

Optima

Rear

2000

Hyundai

Sonata

Rear

2001

Hyundai

Sonata

Rear

2002

Hyundai

Sonata

Rear

## Details

- **Price:** 158.72 CAD
- **Vendor:** Transit Auto
- **Type:** Disc Brake Kit
- **Tags:** 2000 Hyundai Sonata, 2001 Hyundai Sonata, 2001 Kia Optima, 2002 Hyundai Sonata, 2002 Kia Optima, 2003 Kia Optima, 2004 Kia Optima, 2005 Hyundai Sonata, 2005 Kia Optima, 2006 Kia Optima, Automotive Parts, Daily Driver, Direct Replacement, Disc Brake Kit, Disc Rotors and Ceramic Brake Pads Kit, K8A-108185, Rear, Transit Auto, Transit Auto K8A-108185, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 158.72 CAD | In stock |

## Images

- Transit Auto K8A-108185 Disc Brake Kit for 1999-2006 Kia Optima, Hyundai Sonata - Rear product image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/transit-auto-k8a-108185-disc-brake-kit-for-1999-2006-kia-optima-hyundai-sonata-rear-k8a-108185)
> Updated: 2026-06-03