AC Accumulators & Receiver Driers are critical components within a vehicle's air conditioning system, falling under the HVAC category. These parts are positioned either after the condenser (receiver driers) or before the compressor (accumulators) and function to filter debris, remove moisture, and store refrigerant, ensuring optimal AC performance and protecting system components from damage. Accumulators are typically found in systems with a thermal expansion valve, while receiver driers are used with orifice tube systems. They play a vital role in maintaining proper refrigerant pressure and temperature. Examples in this category include parts for Mercedes-Benz Trucks, IVECO, and DAF with part number 1700163. Febi offers a receiver drier with MPN FEBI44401, and Scania utilizes components like MPN 2057999 in their AC systems.