New just an open box. Please refer to the photos provided for condition.

The product is a Secondary Air Injection Check Valve designed for Chevy Trailblazer, GMC Envoy, and other compatible vehicle models from 2004-2005. It includes a valve with a gasket and is suitable for engines with a 4.2L L6. The check valve has an interchange part number of 911-003 and manufacturer part numbers 12575655 and 12619128. This product specifically fits vehicles with 2 pins and does not fit those with 5 pins, ensuring compatibility and proper functionality for the specified vehicle models and years.