# Transit Auto KGT-103803 Disc Brake Kit for 2005-2008 Cadillac STS - 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 q...

### Key Features

-   Exclusive SilentGrip™ Low Resin Ceramic formula provides superior braking performance (Smooth Friction, Extreme Temperature Stability, Quicker Compound Cooling) while maintaining low dust and noise
-   Exclusive MetalliX™ Low Resin Semi-Metallic compound provides unmatched braking performance (abrasive friction, high temperature tolerance, quicker compound warming) while maintaining low dust and noise
-   Engineered with with Carbon-Enhanced G-Cast™ (G11H18/G3000) iron castings to achieve an optimal braking performance (strength, stability, durability)
-   Fiber-Reinforced Multi-Layer Shim with rubber core eliminates 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
-   Exclusive G-Coat™ double-layer (8µm) protective coating provides rust protection on 100% of the non-braking surface

### Package include:

-   2x Disc Brake Rotor
-   1x Brake Pad Set
-   1x Parking Brake Shoe

### Vehicle Fitment

**Fitment Summary:** 2005-2008 Cadillac STS

**Position:** Rear

-   2006-2008 Cadillac STS — Position: Rear | Fitment Precision: Base | Note: With Base Brakes and With 298mm Diameter Rear Rotor
-   2006-2008 Cadillac STS — Position: Rear | Fitment Precision: V and with 4.4L | Note: With Base Brakes and With 298mm Diameter Rear Rotor
-   2005 Cadillac STS — Position: Rear | Note: With GM Brake Code JL9 and With 298mm Diameter Rear Rotor

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. This listing includes fitment data for 2005-2008 Cadillac STS.

**What part number is this?**  
The listed part number is KGT-103803.

**Is this product designed for direct replacement?**  
Yes. This Disc Brake Kit 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 Cadillac STS
-   KGT-103803 fitment
-   Transit Auto Disc Brake Kit
-   Rear Disc Brake Kit
-   2005-2008 Cadillac STS Disc Brake Kit

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2006

Cadillac

STS

Rear

Base

With Base Brakes and With 298mm Diameter Rear Rotor

2007

Cadillac

STS

Rear

Base

With Base Brakes and With 298mm Diameter Rear Rotor

2008

Cadillac

STS

Rear

Base

With Base Brakes and With 298mm Diameter Rear Rotor

2006

Cadillac

STS

Rear

V and with 4.4L

With Base Brakes and With 298mm Diameter Rear Rotor

2007

Cadillac

STS

Rear

V and with 4.4L

With Base Brakes and With 298mm Diameter Rear Rotor

2008

Cadillac

STS

Rear

V and with 4.4L

With Base Brakes and With 298mm Diameter Rear Rotor

2005

Cadillac

STS

Rear

With GM Brake Code JL9 and With 298mm Diameter Rear Rotor

## Details

- **Price:** 195.3 CAD
- **Vendor:** Transit Auto
- **Type:** Disc Brake Kit
- **Tags:** 2005-2008 Cadillac STS, Automotive Parts, Brake Parts, Cadillac STS, Disc Brake Kit, KGT-103803, Rear, Replacement Parts, Transit Auto, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 195.30 CAD | In stock |

## Images

- Transit Auto KGT-103803 Disc Brake Kit for 2005-2008 Cadillac STS - Rear

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> Source: [Standard Auto Part](www.standardautopart.com/products/transit-auto-kgt-103803-disc-brake-kit-2005-2008-cadillac-sts)
> Updated: 2026-06-20