The PIERBURG auxiliary air pump module, part number 7.22166.00.0, is a key component for managing emissions and optimizing engine performance. It is engineered to deliver reliable and consistent operation, contributing to a cleaner exhaust. This module is integral to the secondary air injection system, which injects fresh air into the exhaust stream to help burn off harmful emissions before they leave the vehicle. Proper functioning of this pump is essential for meeting emission standards and maintaining engine efficiency. Crafted with PIERBURG's commitment to quality, this auxiliary air pump module is built to withstand the demanding conditions of an engine compartment. Its robust construction ensures longevity and dependable performance throughout its service life.