Finding and replacing dcs391 parts for your saw

Tracking down the right dcs391 parts shouldn't feel like a full-time job, but anyone who has ever had their circular saw quit in the middle of a deck build knows how frustrating it can be. The DeWalt DCS391 is a fantastic 20V workhorse, but like any tool that spends its life chewing through 2x4s and plywood, things are going to wear out eventually. Whether it's a trigger that's gone mushy or a base plate that's seen one too many drops off a sawhorse, most of these issues are actually pretty easy to fix yourself if you can get your hands on the right components. ...

April 20, 2026 · 7 min · Cassandra Fink