This shutter control valve fits Mack E6 and Mack Universal applications, built as a replacement for the original unit. It regulates air pressure to actuate the grille shutter assembly, opening and closing the louvers to help manage airflow through the radiator for engine temperature control. Sold individually, it is a straightforward swap for shops replacing a worn valve.Interchanges:2790-CA2000237MG215BP77MG215CP77MG215DP77MG215P7Mack 2079-SS170ECV-8370-170FeaturesShutter control valveFits Mack E6 and Mack Universal applicationsSold pack quantity: 1 eachCab category componentTech SpecsSell pack: 1 EACHFitment: All Mack Universal, All Mack E6