Replacement Part Numbers: 0009107238, 7420748450, 20443641, 20748450, 1847100, 2133705, 20586535, 81623986071, 42538425Wide Vehicle Compatibility: Fits for a wide range of heavy-duty trucks, including Volvo FH/FM/NH series, Mercedes-Benz Actros/Atego/Antos/Arocs, Scania L/P/G/R/S series, Renault trucks, and MAN TGA/TGL/TGM/TGS/TGX series. Crucial Fitment Note: This is a seat control valve designed for heavy-duty commercial vehicles ONLY and is not for passenger cars. Please verify your vehicle's model and cross-reference the OEM numbers before ordering.Precision Seat Adjustment & Restored Driver Comfort: This seat height regulator valve allows for precise control over the seat's air suspension system, enabling drivers to easily adjust the seat height. A faulty valve can cause the seat to fail to maintain its set height, sink unexpectedly, or not adjust at all. This replacement restores proper seat functionality, contributing to better driving posture and reducing fatigue on long hauls.Plug-and-Play Installation: Direct replacement with factory mounting points and air line connections. Installation is straightforward and can be completed with basic hand tools. Professional installation is recommended to ensure proper sealing and function of the pneumatic system.Quality Assured: Built with a durable combination of high-quality ABS plastic and metal materials to offer exceptional strength and wear resistance. Rigorously tested to ensure reliable, long-lasting performance in demanding commercial vehicle environments. If you encounter any issues during shopping or have questions about compatibility, please contact us promptly through Amazon Buyer-Seller Messaging.