Genuine Makita 233940-9 — Ring Spring 19
A genuine Makita 19 mm ring spring (part no. 233940-9). This small C‑shaped retaining ring fits into the tool‑holder/chuck assembly of Makita SDS+ rotary hammers and holds the guide washer/retaining components in place to prevent axial movement during use.
Key details
- Designation: Ring Spring 19 (marked 19 in Makita parts lists).
- Function: C‑shaped retaining/locking ring used in the tool holder to secure the guide washer/impact bolt/holder cap.
- Pack quantity per tool: 1 (listed as a single replacement part in Makita parts breakdowns).
Example models this part is used on (examples only)
- HR2450, HR2470, HR2460/HR2455 , BHR240, BHR241, BHR261, HR3210C, HR2810 and several other Makita SDS+ rotary hammers — check the parts diagram for your exact model to confirm placement.
Why choose this part
- Direct replacement listed by Makita for the tool‑holder assembly; restores correct retention of the guide washer and associated parts so the chuck/toolholder stays secure during operation. Installation is a simple swap into the holder groove shown on the exploded parts diagrams.
If your rotary hammer’s tool‑holder hardware is missing or the retaining ring is deformed, the original Makita 233940-9 ring spring is the correct, listed replacement to restore reliable retention and safe operation.
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