This Four Seasons A/C Accumulator, part number 33174, is a perfect fit for your 1986-1993 Ford Aerostar HVAC system. It comes with all the necessary items for installation, including an O-Ring and gasket. The mounting style is bolt-on, making it easy to install and durable tested to ensure it will last. This vintage part is made of metal and is a great replacement for your old A/C receiver dryer. It is not a universal fitment and is not intended for performance upgrades. Please note that this product contains a chemical known to the State of California to cause birth defects or other reproductive harm, as indicated by the California Prop 65 Warning. If you have any questions or concerns, please feel free to contact us. Exact item is shown. This is new without the original packaging, which is only shown for reference. This has an aluminum housing. Includes accumulator and three O ring gaskets. No returns on installed items or partial kits. Please review our business policies in our store for information regarding returns, shipping and warranties.