This low oil pressure switch fits Mack and Volvo applications, built as a replacement for the original equipment. Mounted on the engine block or oil gallery, it monitors oil pressure and signals a warning light or alarm if pressure drops below a safe operating level. It is sold individually as one each.Interchanges:Rockwell RBE13255Mack 1MR2226Mack 8235-RBE13255Volvo 25156350LST-3607FeaturesLow oil pressure switchSold pack quantity: 1 EACHCategorized under Air Brake PartsTech SpecsSell pack: 1 EACH