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The MILWAUKEE 28-20-1390 is a OEM gearcase cover assembly designed as a replacement component for Milwaukee power tools. The gearcase cover encloses and protects the internal gear train, bearings, and drive components from debris, contamination, and physical damage during operation. This part maintains the structural integrity of the tool housing and ensures proper alignment of internal components. It is installed by power tool repair technicians and experienced service professionals performing authorized or field-level repairs on compatible Milwaukee equipment.
This gearcase cover assembly is a direct OEM replacement part sourced from Milwaukee. It is suited for use in professional repair and maintenance scenarios where the original cover has been cracked, damaged, or lost. Typical applications include service bench repairs on Milwaukee power tools that use this specific gearcase cover configuration.
Designed as an OEM-style replacement gearcase cover assembly for compatible Milwaukee power tools requiring part number 28-20-1390.
Installation should be performed by a qualified power tool repair technician. Disconnect and remove the battery pack or unplug the tool from any power source before beginning disassembly. Use appropriate hand tools and follow Milwaukee service documentation for proper reassembly sequence. Ensure all internal components are correctly seated before securing the gearcase cover to prevent damage during operation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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