The Genuine GM Rear Passenger Side Disc Brake Caliper Assembly 89060219 is a high-quality, direct replacement part for Cadillac STS and CTS models from 2003 to 2011. This OEM assembly comes with a 1-year manufacturer warranty and includes only the part reference #2 on the diagram. It is designed to fit specifically as a genuine GM part, ensuring proper fitment and performance. With a focus on quality and authenticity, this caliper assembly is a reliable choice for maintaining the braking system of your Cadillac vehicle.