556-00724 REPLACEMENT WAFER PLATE Fits BARKOOne New Aftermarket Replacement Wafer Plate for Barko Forestry Equipment This aftermarket replacement wafer plate is a hydraulic pump internal component used in Barko forestry equipment. The wafer plate (also called a valve plate or port plate) is a precision machined internal element of the hydraulic pump assembly that controls fluid porting directing hydraulic fluid flow into and out of the pump's displacement chambers. Worn or damaged wafer plates