This Gates DriveAlign 38163 Drive Belt Tensioner Assembly replaces Four Seasons 45533, Dayco 305245, Dayco 89245, CARQUEST 305245, CARQUEST 89245, Dorman - TECHoice 419-016, Chrysler 04854089A, Chrysler 4854089AB, Tendeco 999462, Goodyear 49256, Dorman 419-016, Litens 999462A, OEM parts and is perfect for replacement or a performance upgrade. .
I only have about 50 miles on the new tensioner, so I am not able to comment on its longevity. it appears to be the same quality as the OEM, and is an exact fit.