A-B17051584YP-AI HEX TUBE ASMY, DXOne New Aftermarket Replacement Hex Tube Assembly for Snapper Fits Briggs & Fits Stratton Lawn Mowers This hex tube assembly (also referenced as Hex Tube Asmy, DX) is a direct drive deck component used on Snapper rear engine riders and walk behind mowers. Snapper, Murray, and Simplicity brands are all owned by Fits Briggs & Fits Stratton, and this part is cataloged under all three families. It is a pipe and tube category part used in the mower deck