Freightliner Exhaust Manifold Part No: DDE/23533821

The Detroit Diesel DDE/23533821 Exhaust Manifold is a critical exhaust system component used on Freightliner trucks equipped with Detroit Diesel engines. Its role is to collect exhaust gases from each cylinder and channel them efficiently toward the turbocharger or downstream exhaust components. Designed to handle high exhaust temperatures and continuous thermal cycling, this OEM manifold offers precise fitment and durable construction. Replacing a worn or cracked manifold helps restore proper exhaust flow, reduce leaks, and support optimal engine and turbocharger performance in demanding commercial trucking environments.