Original DeWalt part N150087 — Dust conveyor for DWS778 / DCS778 mitre saws. This compact, molded dust-conveyor channel routes chips and sawdust from the saw housing into the dust bag or extractor; it’s a direct replacement listed under part number N150087 for DeWalt DWS778 and DCS778 models (Type 1/2/3 where applicable).

Designed for a straightforward swap, the piece locates and clips into the saw’s dust outlet so you can restore proper extraction without modifying the tool; it’s the original DeWalt component used to keep the dust path clear and improve collection efficiency.

If your mitre saw isn’t evacuating dust into the bag or extractor, replacing this small but essential part will get the dust flow back to normal — it’s one of the common power tool parts that fixes extraction issues quickly.