Makita 458484-0 Spare Part - HAMMER CASE COVER DTD171
Makita 458484-0 — Hammer case cover (original Makita)
Replace a damaged hammer-cover quickly with this original Makita 458484-0 hammer case cover. This part is the molded cover that protects and houses the impact-driver hammer assembly and anvil area; it restores the factory fit and alignment so the hammer assembly and bit sleeve operate correctly and remain shielded from dust and debris. The cover installs into the existing housing and is held with the tool’s standard tapping screws (3 × 16 mm shown in the parts diagram).
Examples of models this part is listed for: Makita DTD171 / DTD172 series impact drivers. Check the exploded parts list in your model to confirm the item number 012 / 458484-0 matches your tool.
Details you’ll want to know
- Part number: 458484-0 (exact Makita part).
- Function: hammer/impact mechanism cover — protects hammer, anvil and related internal parts; ensures correct spacing/alignment for reliable impacts.
- Fit/installation: fits into the original housing and secures with the tool’s factory screws (tapping screws 3 × 16 mm used in the same assembly). No internal modification required when replacing the matching cover from the same model family.
- Condition: sold as the single genuine Makita replacement cover.
If your impact driver shows cracking around the hammer area, loose fit between hammer components, or accelerated ingress of dust into the hammer chamber, replacing this cover with the original Makita 458484-0 will restore the intended protection and alignment for safe, reliable operation.
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Compatible models this part will fit:
