Genuine DeWalt replacement part 329023-49 — height adjustment insert/service kit for DeWalt plunge routers. This service part replaces the worn height-adjuster/insert that sits in the router’s plunge/height mechanism, restoring accurate, repeatable depth control and smooth travel so your DW621/DW622 router performs to original tolerance. Fits DeWalt DW621 (Type 1, Type 2 and Type 3) and DW622 (Type 3) models — it’s also shown as compatible with several ELU/OF97-series routers that share the same height-adjuster design.

Key details: genuine DeWalt part number 329023-49; listed as the “adjuster height” / “height adjustment kit” or insert used in the router base; intended as a direct, like‑for‑like replacement to recover precise depth setting and eliminate play in the height mechanism.

Order this if the router’s depth stops slip, the height knob feels loose or the insert is cracked — swapping the 329023-49 back into the housing typically returns the original feel and accuracy.