About

About Preferred Automotive Components Preferred Automotive Components (PAC) has been a trusted North American supplier of high-performance Shim Insulators since 2013. Our product line includes Shims, Wear Sensors, and Caliper Hardware, all supported by industry-leading service and engineering collaboration. We differentiate with advanced features like FastTab™ for fast plastic liner removal, SnapRight™ for efficient staking, StakeRight™ to eliminate buckling, and our QUIKrelease™ design to reduce pad drag. Our goal is to deliver performance, consistency, and reliability to brake system manufacturers across the globe. In 2023, we expanded our stamping capacity with two new presses dedicated to shim production—and in 2024, we added two more. These investments have significantly reduced lead times and further strengthened our ability to support customer growth.