Makita 213428-5 Spare Part - X RING 28 HM0810

213428-5 supersedes older part numbers: 213420-1

Makita 213428-5 — X‑Ring 28 (original Makita)

- A genuine Makita quad‑profile (X‑ring) seal designed to restore the hammer/impact chamber sealing on compatible Makita demolition and rotary hammers.

- Nominal sealing diameter: 28 mm (sold as X‑Ring 28). Manufactured from a durable, oil‑resistant elastomer to resist grease and the percussive duty inside the hammer mechanism.

- Typical purpose: replaces worn or damaged internal seals that allow grease or air leakage, helping recover consistent impact performance and preventing premature wear of adjacent components.

Fits (example models)

- Commonly listed for Makita HM0810 / HM0810B / HM0810T, HM1130 / HM1130C, HM1200K and several HR‑series demolition/rotary hammers including HR3850, HR3850B and HR5000, as well as M8600 / MT860 style models.

What you get

- One original Makita 213428-5 X‑ring (packaging and quantity as sold under the Makita part number).

Why this part

- The X (quad) profile gives better sealing under side‑load and reciprocating movement than a simple round O‑ring, making it appropriate for hammer mechanisms. It’s made to Makita’s tolerances so it installs like‑for‑like into the specified assemblies.

If your tool shows grease loss around the percussion mechanism or the blows feel weak, this original Makita X‑ring 213428‑5 is the specific seal used in the models listed above and is suitable to restore proper sealing and impact performance.

Jump straight to the Makita spare parts diagrams:

• Makita HM0810 Parts
• Makita HM0810T Parts
• Makita HM1130 Parts
• Makita HM1130C Parts
• Makita HM1200K Parts
• Makita HR3850B Parts
• Makita HR5000 Parts
• Makita M8600 Parts

Browse our full range of Makita hammer drill parts.