While many weight distribution hitches are made to be compatible with a sway control attachment, the CURT TruTrack is an advanced WD system that integrates the sway control function into the design of the hitch. It combines precise weight distributing with integrated sway control to deliver the smoothest, safest ride possible. This replacement TruTrack weight distribution head for the #17501 is made from heavy-duty, cast steel for reliable strength and comes with a durable powder coat finish to resist rust and wear.