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Carbon Brush

Part Number: N257540
DeWALT
Availability: 25+ in stock
Price: $2.99
Ships within 1 business day
Product Information
Manufacturer: DeWALT
Product Number: N257540
Classification: Part
Weight: 0.01 lbs.
Also Known As: Motor Brush
Shipping: Ships Worldwide
Description:
Genuine Dewalt replacement part used on Small Angle Grinder. This brush has a lead wire attached and it is Sold Individually. It is always best to replace both brushes, even if only one is worn.

Carbon brushes are one of the most commonly replaced power tool parts. This is because carbon brushes are wear items, meaning that through friction and use they will gradually wear away until they need replacing. Worn brushes are a common causes of intermittent motor function, reduced electric braking and reduced motor power. A worn-out brush will often be worn down near to the wire lead and can be cracked, pitted, or burned. When replacing carbon brushes, be sure to inspect your armature for burns, cracks, or other damage which can indicate larger motor problems.
Products Compatibility

This item works with the following types of products:

  • • Grinder
Repair Instructions: Submitted by Customers Like You
6 of 6 people found this instruction helpful
Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Torx Bit Screwdriver
Grinder would not run
1- Remove three torx screws that hold the handle on
2- Remove front and back side of handle.
3- Remove plastic lever used to turn grander on by prying it straight up.
4- Remove old brushes (Note: old/org brushes have a spring pin in them that will stop the motor from running when the brushes wear down so far)
5- Install new brushes
6- Reinstall black plastic lever
7- Reinstall back and front of handle
8- Reinstall Torx screws
9-Test
10- Done
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4 of 4 people found this instruction helpful
Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Stop working
We change the brushes and start working, easy
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1 of 1 people found this instruction helpful
Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Switch - N396008
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver
Switch was bad
Disassembled the grinder to replace the switch and replaced the brushes while I had it tore apart.
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1 of 1 people found this instruction helpful
Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Star bits
Grinder stopped running during use
Removed plastic housing, located brush, removed from the grinder and replaced with new one, put housing back together and plugged into the wall.
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Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, torx driver & small needle nose pliers
grinder won't run but power cord is good.
Use torx driver to open the case.
Use small needle nose to gently move coil spring arm off the brush and disconnect the lead.
Remove old brush and insert new one. (always best to replace both at same time)
Reconnect lead and replace coil spring arm back on top of the brush.
close up the case, do not over tighten torx screws.
Test for working.
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Tool Type:
Grinder
Parts Used:
Heat Sink - 689170-4
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver
Broken brush
Disassembled grinder and cleaned it.installed brushes and used scotch brite to clean commutator.assembled grinder and test run about 5 minutes.a o.k..the heat sink goes in my own drill and haven't had time to put it in yet.
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Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Wouldn’t keep running
1Remove screws in handle
2remove old brush’s
3install new brushes
4install screws
5grind away
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Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
Worn out brushes
Replaced brushes, cleaned commutator and blew out grinder.

Added grease to gear case.
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Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Small pick
Brushes worn
Removed screws in housing. Lifted springs off brush with pick. Pulled brush out of retainer and in plugged. Plugged in new brush put in retainer and replaced spring on brush. Repeated process on other brush. Replaced housing and screwed back together.
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Tool Type:
Grinder
Parts Used:
Carbon Brush - N257540
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Brushes were worn out
1 - Opened up end of grinder
2 - remove/replace brushes
3 - Reassembled
All good
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Reviews
4.9
Average Rating (out of 5):
14 Reviews
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  • Great part!
    Received the parts in 2 days from ordering. Very smooth process will order from here again.
    Roger - 10 days ago Verified Purchase
    Right Fit -inexpensive repair!
    The carbon brushes I needed were easy to find in the online catalog. Parts arrived quickly, grinder runs good and is back in use.
    Fernando - March 5, 2021 Verified Purchase
    Wrong part
    Ereplacementparts took care of it right away. Thx
    Guest - September 29, 2020 Verified Purchase
    Easy repair part.
    The part was in great condition and fit perfectly in my motor. My grinder is back on the job like it was when it was new.
    DArcy - June 2, 2020 Verified Purchase
    WORKED GREAT!
    PART ARRIVED QUICKLY AND FIXED THE PROBLEM!
    Guest - June 1, 2020 Verified Purchase
    Brushes were the exact part I needed
    Super fast delivery
    Guest - May 27, 2020 Verified Purchase
    Go to for orders
    Always receive them in a timely fashion and we have orders a few and for different grinders as well.
    Lisa - May 20, 2020 Verified Purchase
    excellent service !!
    excellent on service, and delvy
    Structural - November 20, 2019 Verified Purchase
    Good quality, great prices
    Easy to find parts, great prices and quick delivery
    Lenny - October 29, 2019 Verified Purchase
    Grinder not running
    Bought brushes from replacement parts at a very fair price. Had grinder running in 10 minutes.
    Jim - October 15, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: DeWALT
    Product Number: N257540
    Classification: Part
    Weight: 0.01 lbs.
    Also Known As: Motor Brush
    Shipping: Ships Worldwide
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