Original Makita Cap 34 — part number 286037-3 — a genuine Makita replacement cap designed to seal and protect the chuck/gear area on SDS‑Plus rotary and combination hammers.
This small rubber dust/seal cap keeps grease in and concrete dust out of the drive/gear assembly, aligns the chuck cover and restores the tool’s original sealing; it’s specified as "CAP 34" on Makita parts diagrams.
Fits a range of Makita rotary/combination hammers including DHR171, DHR182 (and DHR182ZJ/DHR183 variants), HR140D, HR166D, HR1840, HR1841F and some HR010G-series models — check your model’s parts list to confirm exact placement.
The part is listed in Makita exploded diagrams as CAP 34 (listed under part no. 286037-3), so if your tool’s diagram shows CAP 34 this is the matching original Makita cap to restore the seal and function.
Ideal for anyone repairing a hammer drill, this genuine Makita cap is a low‑cost, straightforward replacement that will get your tool back in service quickly — it’s one of those essential parts for power tools that stops small damage from turning into a major repair.
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