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The 3M 7100043413 is a replacement bumper and bolt assembly designed for use with the 3M 28391 electric polisher. This assembly provides the structural interface between the polisher housing and working surfaces, protecting both the tool and the workpiece during operation. It is a direct OEM-style replacement component sold as a single pack, intended for service technicians and tool repair professionals who need to restore a worn or damaged polisher to proper working condition. Replacing worn bumper components helps maintain safe tool operation and extends the service life of the polisher.
This part is a manufacturer-specified replacement for the 3M 28391 electric polisher. It is suited for professional detailing and surface finishing environments where the polisher sees regular use. Technicians performing routine tool maintenance or post-damage repair will find this assembly a direct drop-in solution. Refer to the 3M 28391 owner's manual parts list and tool schematic for confirmation of fitment and installation sequence before ordering.
Designed as a direct replacement component for the 3M 28391 electric polisher. Consult the 3M 28391 owner's manual parts list and tool schematic to confirm this assembly matches the required part position before installation.
Disconnect and fully de-energize the electric polisher before beginning any disassembly or parts replacement. Use hand tools appropriate for the fastener type included in the bolt assembly. Refer to the 3M 28391 owner's manual for the correct installation sequence and torque guidance specific to this tool. Tool repair should be performed by a qualified service technician familiar with electric power tool servicing.
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