Hydraulic/Transmission Filter Element, Filter Design , Hydraulic or Transmission Element, Micron Rating 23, Height 9 3/16 in, Length 9 3/16 in, Width 3 15/16 in, Outside Dia. 3 15/16 in, Inside Dia. 2 9/32 in, Includes Reinforced Centertube, For Use With Caterpillar Equipment, Thread Size Not Applicable