OEM STANDARD This 25804 Air Shock Controller Kit is manufactured in accordance with OE specifications. Meet or exceed OEM standards and can be directly installed. The installation parts fit tightly and fit perfectly with the size of the truck to ensure installation and use of stability. (OE Part Number: 25804) COMPATIBLE MODELS Our 25804 Air Suspension Controller Kit directly compatible with 2015 Ram ProMaster City Base Mini Passenger Van 4-Door, SLT Mini Cargo Van 4-Door, SLT Mini Passenger Van 4-Door, ST Mini Cargo Van 4-Door, ST Mini Passenger Van 4-Door, Tradesman Mini Cargo Van 4-Door, Tradesman SLT Mini Cargo Van 4-Door. Please carefully check the suitable models before placing an order. FUNCTION The Air suspension controller kit can help you seamlessly switch between comfortable highway cruising, strong off-road ground clearance and perfect flat parking, giving you the best handling and stability. The Air shock absorber controller kit can be controlled by a remote control, and you can adjust the on-board air compressor system for a safe and comfortable driving experience. (Note: Do not exceed Gross Vehicle Weight Rating (GVWR)). REPLACE YOUR OLD AIR SHOCK CONTROLLER KIT Designed for durability in harsh environments, our Air Suspension Control Kit 25804 features a fully sealed, waterproof housing and is equipped with high-flow, corrosion-resistant and rust-resistant valves for maximum airflow and corrosion resistance, extending the life of the product. Replace your old Air Suspension Control Kit and enjoy a comfortable and safe driving experience!