Milwaukee Replacement O-Ring for M12 & M18 Impact Wrenches
The Milwaukee O-Ring (OEM 4931416492) is a genuine replacement sealing component engineered to maintain peak performance in Milwaukee M12 and M18 impact wrenches.
Designed to deliver a precise, leak-free fit, this durable O-Ring helps preserve internal pressure, reduce wear, and support long-term reliability of your tool’s hammer and anvil assembly.
Manufactured from high-quality elastomer materials, it withstands the demanding conditions of high-torque applications, ensuring smooth, consistent operation.
Ideal for routine servicing, this OEM O-Ring restores factory-standard sealing performance on models including;
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M12FIWF12
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M12FRAIWF12
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M18FHIWF12
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M18FIW2F12
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M18FMTIW2F12
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M18ONEFHIWF12
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M18ONEIWF12