DeWalt SDS Dynamic O Ring 13X3 DCH143 DCH253 DCH273 DCH274

DeWalt SDS Dynamic O Ring 13X3 DCH143 DCH253 DCH273 DCH274

This O Ring is the little brown O ring that fits inside of the ram of your sds. Due to this part being made out of rubber to provide a good air tight grip, it can begin to stretch and fray, no longer providing the job it was designed to do. In this case you will need to replace this part.

Please see suitable models below: