Feature: 1. OE Number: Purge valve set replace part number are 800405, 5004341. Please check the part numbers whether it suits your vehicle before purchasing. 2. Professional and Reliable: Replacement for Bendix. Upgraded and professionally designed to meet your usage needs and bring you a reliable experience. 3. Enhanced Efficiency: By using this purge valve kit, your vehicle's performance will be greatly improved, keeping your vehicle in optimal condition. 4. Premium Material: Made of metal construction, high strength, sturdy and strong, not easy to deformation and damage, ensuring long lasting performance. 5. Easy Installation: The installation and replacement process is convenient and can be easily done by non professionals, saving your time and effort. Specification: Item Type: Air Dryer Purge Valve Material: Metal OE Number: 800405, 5004341 Fitment: Replacement for Bendix AD-9 Air Dryer. Package List: 1 x Purge Valve Kit(8PCS) Note: 1. Please check the OEM number and Fitment model carefully before purchasing. 2. It is strongly recommended to have the installation done by a professional mechanic.