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Repair information and diagrams for hammer drills.

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How do I replace this milwaukee heavy duty jack hammer piston?

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Do you have a model number for this tool?

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@mike3 Milwaukee 5339-21 SDS-Max Demolition Hammer

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@chillduty23 it will be pretty much the same as on a 5339-20 Here is the repair manual for that Milwaukee 5339 20 The part number for the 5339-21 piston is Milwaukee Part # 44-62-0053 and readily available at plenty of online stores.

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