This fresh air brake pressure regulator covers models AE4158, AE4168 and part numbers 0024310106, 9347022500. It acts as a core control unit within the full truck air brake assembly. It precisely maintains airflow pressure to deliver steady and secure braking feedback.Built with sturdy corrosion-resistant materials, it delivers trustworthy sealing performance.It also boasts solid construction for extended everyday service longevity.It complies fully with official OEM guidelines and fits in place with simple installation. It works as an excellent swap for worn-out or defective pressure regulators.