Original Makita compression spring — part no. 234228-0 (listed as "Compression Spring 6"). This small steel compression spring is the return/pressure spring used in the DX-series push-button/slide and release/filter cover assemblies; it’s sold as a single piece and shown in Makita parts listings.

Fits examples: Makita DX01 and DX02 (and the related DX-series listings such as DX05/DX06 where the same spring is used in the release/push‑button assemblies). These references show the part number mapped to those DX models.

Why this part matters: if the spring is broken, the push‑button/cover or release lever can fail to return or seal properly — replacing it with the original Makita 234228-0 restores correct spring tension and operation. This genuine Makita replacement is inexpensive, stocked as an individual item, and a quick fix to get your DX-series tool working again.