This shock absorber mounts between the axle and frame to dampen suspension movement and help keep the tires tracking evenly on the road. It is a suitable replacement across a range of Mack and Navistar truck applications and ships individually as a 1-each unit.Interchanges:14QK140204994R91210533R91210534R92210535R91210536R91210537R91210538R91Navistar 288920C91288921C91308643C91308648C91Navistar 432566C91453561C91453562C91453565C91453566C91453568C91453569C91Mack 14QK140P1Navistar 165919R91HSA-5030FeaturesSold pack quantity: 1 EACHTech SpecsSell pack: 1 EACH