Original Makita piston — part no. 450025-8 — direct replacement piston for Makita rotary hammers.
This precision-machined piston has an outer diameter of 33 mm and a height of 27 mm, sized to fit the hammer cylinder and restore proper impact action.
Fits Makita models HR4501C, HR4510C and HR4511C (This piston is shown in Makita parts diagram for these models).
Sold as a genuine Makita replacement part, ready to install during a service or repair — ideal when the original piston is worn, scored or damaged and you need the correct fit and tolerance to bring the tool back to reliable operation.
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