Medium
15-30 minutes
This authentic item is supplied directly from the original equipment manufacturer for use with DeWALT miter saws. The armature assembly attaches to the field & case. When replacing this part a screwdriver, a socket set, and a set of pliers may be needed. It is made of metal and will require replacing if it stops working. This part is available as an individual replacement part.
Armature Assembly N143958
OEM part for: DeWALT
Part Number: N143958
$191.44
In Stock
Ships within 1 business day 
Jump To:
Frequently Purchased Together ?
Compatibility
This Armature Assembly will fit the following 10 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
DeWALT
Show More Compatible ModelsThis item works with the following types of products:
- Miter Saw Parts
- Saw Parts
Customer Part Reviews ?
Average Rating (out of 5):
Click to filter by ratings:
5 stars
3
4 stars
0
3 stars
0
2 stars
0
1 stars
0
< PREV
- 1
Even though the part was not the correct item, you were very helpful in helping me figure out what was going on. Also took the part back reimbursing me in full, freight and all. Thank You for your dedication in helping the customer to your fullest... Well done!!! Thank You,
Even though the part was not the correct item it helped me fine out my part as no longer available and you gave me options to my situation.
Melinda -
October 23, 2023
Verified Purchase
Part was a perfect fit. Very easy repair.
Easy ordering process. Had exactly what I needed. Simple repair.
Donnie -
April 20, 2021
Verified Purchase
Worked as expected.
Arrived quickly, and in great shape! Website easy to navigate and order process is easy...
Guest -
June 12, 2019
Verified Purchase
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
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 Assembly
How to remove drive pulley from armature shaft? Is the pulley pressed on?
Jerry
for model number Dewalt DWS782 type 20
asked on 2024-01-05
Hi Jerry, Thank you for asking. The Bearing is a press on Bearing. You can use a Bearing Puller Tool to remove the Old Bearing if it can not be pulled or tapped off. We hope this helps!
eReplacementParts Team January 05, 2024
Can I replace just that bearing or I have to replace the whole part,
Jamie
for model number DWS782 miter saw
asked on 2022-03-13
Hello Jamie, Thank you for your inquiry. We have researched the model number you have provided and the bearing at the fan end of the armature is part# N127530, and the bearing at the other end is part# N110359. We hope this helps and if you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team March 13, 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.
growling noise
Brad - March 15, 2023
👍 1 of 1 people found this instruction helpful
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, torx drivers
Parts Used
I originally ordered a new bearing but upon disassembly I found a special puller would be needed so I ordered a new armature with the bearing attached.
I replaced the armature, brushes and belt, saw works great now.
I replaced the armature, brushes and belt, saw works great now.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Main bearing
howard - October 15, 2022
👍 1 of 1 people found this instruction helpful
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Dead blow hammer
Parts Used
The main bearing went out and I use this saw so much that I decided to just replace the whole Armature and everything. As you had to crack the band to get it off and then you had to have a press to put it back on. And now I have nearly like a brand new saw so it went well.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Bearing went out
Jon - October 12, 2020
Tool Type
Miter Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Power Drill, Torx tips T-15, T-20, & T-25 with my impact
Parts Used
1. Removed cap and took out brushes (very important to do 1st)
2. Removed the belt cover and took off the belt
3. Took off handle and top cover and disconnected the wires from the trigger (take pic with phone to reinstall wires correctly)
4. Removed screws and detached armature housing
5. Removed old armature and slid new armature in (carefully) until the bearings seated completely
6. Reassembled
2. Removed the belt cover and took off the belt
3. Took off handle and top cover and disconnected the wires from the trigger (take pic with phone to reinstall wires correctly)
4. Removed screws and detached armature housing
5. Removed old armature and slid new armature in (carefully) until the bearings seated completely
6. Reassembled
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
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.
