Medium
15-30 minutes
This genuine manufacturer-sourced replacement component which is specially designed for use with DeWALT routers. It is a center part of an electric motor which drives the unit, over time due to physical contact with carbon brushes it will eventually wear out requiring a replacement. This is a complete assembly which includes the armature, the plastic fan, the armature bearing and the commutator end bearing.
Armature Assy. N577846
OEM part for: DeWALT
Part Number: N577846
$98.44
In Stock
Order within the next 9 hours and your part ships today! 
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Compatibility
This part will fit the following 16 machines
DeWALT
DW618 Type 1 Fixed Base Router View Diagrams & Manuals
DW618M Type 1 Fixed Base Router View Diagrams & Manuals
DW618D Type 1 D-Handle Router View Diagrams & Manuals
DW618P Type 1 Router View Diagrams & Manuals
DW618B3 Type 1 Three Base Router Kit View Diagrams & Manuals
DW618B3E Type 1 Base Router Kit View Diagrams & Manuals
DW618PKB (Type 1) Combo Kit Router Fxd View Diagrams & Manuals
DW618K (Type 1) 2-1/4hp Router View Diagrams & Manuals
DW618K (Type 2) 2-1/4hp Router View Diagrams & Manuals
DW618PK (Type 1) 2-1/4hp Router View Diagrams & Manuals
DW618PK (Type 2) 2-1/4hp Router View Diagrams & Manuals
DW618 (Type 2) 2-1/4hp Router Power Tool View Diagrams & Manuals
DW618B3 (Type 2) 3 Base Router Kit Power Tool View Diagrams & Manuals
DW618D (Type 2) 2-1/4hp Router Power Tool View Diagrams & Manuals
DW618M (Type 2) 2-1/4hp Router Power Tool View Diagrams & Manuals
DW618PKB (Type 2) Combo Kit Router Fxd Power Tool View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Router Parts
This part replaces obsolete part #: 398221-01SV, 398221-01
Customer Part Reviews ?
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Easy Repair....Part worked as expected
When I opened the box on a Saturday morning, I noticed that the new armature assembly was damaged. I immediately called customer service. I am going to be honest; I was a little bit rude to the customer service rep because it was evident that the part was damaged prior to being shipped as the parts broken off the assembly were not in the box. The rep was very professional, and I quickly apologized for being snippy. Anyways…. people make mistakes. Its how there delt with that sets companies apart from others. I received a new replacement part within 3 days, and fixed my router. I would not hesitate to purchase from Replacementparts.com again. Thank you
John -
May 25, 2021
Verified Purchase
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eReplacementParts Team
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Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Armature Assy.
My router started to slow down and the spindle started wobbling. Would this part be what I need to fix this?
Chad
for model number Dw618
asked on 2022-08-17
Hi Chad,
Thank you for your question. If the router has slowed down and it is wobbling, you will need to check the armature, the commutator and the carbon brushes. Once you have determined the part you need, please feel free to call customer service. We are open 7 days a week and anyone will be happy to assist you. We look forward to hearing from you!
eReplacementParts Team August 17, 2022
Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
I burnt out the Armature pushing my router too hard
James - July 13, 2022
Tool Type
Router
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Rubber Mallet, punch
Parts Used
The eRepiarTools video made it very easy - their step by step instructions worked flawlessly for me to be able to repair the router. Well done!
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Armature was shorting out and sparking and router had a loss of power
Russ - February 8, 2022
Tool Type
Router
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Power Drill
Parts Used
Disassembled the router and installed the new armature and reassembled it. I have worked on engines and electronics all my life so I had prior eperience.
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Router produced excessive sparks and generated burning ion smell
tom - September 17, 2020
Tool Type
Router
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Initially replaced the magnetic bushings but the excessive sparking did not go away so ordered the replacement armature. The new armature did the trick. The how-to video on armature replacement was helpful.
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
