Dewalt n421487 Armature

Product Description

The DEWALT n421487 is a replacement armature designed for use in DEWALT power tools. The armature is the rotating core of an electric motor, converting electrical energy into mechanical rotation to drive the tool. When an armature fails — typically due to worn windings, brush damage, or overheating — the tool loses power or stops functioning entirely. Replacing the armature restores full motor output without requiring a complete tool replacement. This part is installed by power tool repair technicians and service centers familiar with electric motor disassembly.

The n421487 armature is intended for use in DEWALT power tools requiring this specific armature assembly. It is suited to repair applications where the original armature has experienced winding failure, commutator wear, or mechanical damage. Installation is performed during motor-level service on the affected tool model.

Key Features

• OEM replacement armature restores full motor rotation and power output
• Direct-fit design matched to the original armature specification
• Suitable for professional repair bench service and field tool rebuilds
• Replaces a failed or worn armature without full motor or tool replacement

Compatibility

Designed as an OEM-style replacement armature for compatible DEWALT power tools. Consult the DEWALT parts lookup or service documentation using part number n421487 to confirm fitment for a specific tool model before installation.

Installation Notes

Armature replacement should be performed by a qualified power tool repair technician. Disconnect the tool from all power sources and discharge any stored energy before disassembly. Proper motor reassembly requires attention to brush alignment, commutator seating, and bearing fitment. Refer to the applicable DEWALT service manual for disassembly sequence and reassembly procedures specific to the tool model.

Technical Specifications

• Part Type: Armature

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: n421487