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Carbon Brush

Part Number: N257540

14 Reviews

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Repair Instructions

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.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

DeWALT

DWE43131 (Type 1) 4-1/2/5in 13a 1700mw
DWE43140 (Type 1) 6in 13a 1700mwo 9k S
DWE43144 (Type 1) 6in 13a 1700mwo 9k
DWE43144N (Type 1) 6in 13a 1700mwo 9k
DWE46103 (Type 1) 6in 13a Tuckpoint Gr
DWE43114 (Type 1) 4-1/2i5in 13a,11k Rp
DWE43114N (Type 1) 4-1/2" - 5" HIGH PERFORMANCE PADDLE SWITCH GRINDER
DWE43115 (Type 1) 4-1/2/5in 13a 11k Tr
DWE43115N (Type 1) 4-1/2/5in 13a 11k Tr
DWE43116 (Type 1) 4-1/2-5/6i 13a 9k Tr
DWE43113 (Type 1) 4.5-6in 13a Trig Swi
DWE46144N (Type 1) 6in 9krpm No Lock On
DWE46166N (Type 1) 6in 9krpm, No Loc On
DWE402G (Type 4) 4-1/2-Inch Heavy-Duty Small Angle Grinder
DWE402K (Type 4) 4-1/2-Inch Heavy-Duty Small Angle Grinder
DWE4214 (Type 4) 4-1/2-Inch Heavy-Duty Small Angle Grinder

Expand the 33 compatible machines

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

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