This shutter control valve fits Mack Universal and E6 cab and chassis applications, built as a replacement for the OEM valve. It regulates air pressure to the grille shutter assembly, opening and closing the louvers to control airflow across the radiator for engine temperature management. Sold individually as a single unit.Interchanges:Mack 2790-CA200026Mack 7MG215CP13Mack 2079-SS185ECV-8370-185FeaturesShutter control valveFits All Mack Universal applicationsFits All Mack E6 applicationsSold as 1 eachTech SpecsFitment: All Mack UniversalFitment: All Mack E6Sell Pack: 1 Each