# CMX K8C-103969 Rear Disc Brake Kit for 2006-2011 Cadillac STS, Cadillac CTS

### 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-103969 is a vehicle-specific disc brake kit designed for compatible applications for 2006-2011 Cadillac STS, CTS.

### Key Features

-   Exclusive CeramiX™ High-Density Ceramic compound provides optimal braking performance (Stable Friction, High Temperature Stability, Extended Lifetime
-   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
-   Rubberized Multi-Layer Stainless Steel Shim reduces noise, vibration, and harshness for complete quietness
-   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:** 2006-2011 Cadillac STS, CTS

**Position:** Rear

-   2010-2011 Cadillac STS — Position: Rear; Note: With Performance Brakes and With 320mm Diameter Rear Rotor
-   2009 Cadillac STS — Position: Rear; Fitment Precision: Base; Note: With Performance Brakes and With 320mm Diameter Rear Rotor
-   2009 Cadillac STS — Position: Rear; Fitment Precision: V and with 4.4L; Note: With Performance Brakes and With 320mm Diameter Rear Rotor
-   2006-2007 Cadillac CTS — Position: Rear; Fitment Precision: Base; Note: With Sport Suspension

### 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-103969.

**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 STS
-   Disc Brake Kit for Cadillac STS
-   K8C-103969 fitment
-   CMX Disc Brake Kit
-   Rear Disc Brake Kit
-   2006 Cadillac STS Disc Brake Kit

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2010

Cadillac

STS

Rear

With Performance Brakes and With 320mm Diameter Rear Rotor

2011

Cadillac

STS

Rear

With Performance Brakes and With 320mm Diameter Rear Rotor

2009

Cadillac

STS

Rear

Base

With Performance Brakes and With 320mm Diameter Rear Rotor

2009

Cadillac

STS

Rear

V and with 4.4L

With Performance Brakes and With 320mm Diameter Rear Rotor

2006

Cadillac

CTS

Rear

Base

With Sport Suspension

2007

Cadillac

CTS

Rear

Base

With Sport Suspension

## Details

- **Price:** 222.5 CAD
- **Vendor:** CMX
- **Type:** Disc Brake Kit
- **Tags:** 2006 Cadillac CTS, 2007 Cadillac CTS, 2009 Cadillac STS, 2010 Cadillac STS, 2011 Cadillac STS, Automotive Parts, CMX, CMX K8C-103969, Daily Driver, Direct Replacement, Disc Brake Kit, Disc Rotors and Ceramic Brake Pads Kit, K8C-103969, Rear, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 222.50 CAD | In stock |

## Images

- CMX K8C-103969 Disc Brake Kit for 2006-2011 Cadillac STS, Cadillac CTS - Rear product image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/cmx-k8c-103969-disc-brake-kit-for-2006-2011-cadillac-sts-cadillac-cts-rear-k8c-103969)
> Updated: 2026-06-03