Medium
30-60 minutes
It is an authentic manufacturer-sourced replacement brush ring assembly which is specially designed for use with Porter Cable and DeWALT hammer drills. This part holds carbon brushes around the armature to provide a stable and a safe contact, over time components may wear out and begin to fail eventually requiring a replacement. This high-quality assembly is sold individually, keep in mind it consists of a durable plastic ring, two metal brush holders with attached spring. Please note that the carbon brushes are sold separately.
Brush Ring Asy 90540127
OEM part for: Porter Cable
Part Number: 90540127
$10.51
In Stock
Ships within 1 business day 
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Compatibility
This Brush Ring Asy will fit the following 2 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
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2 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Porter Cable
This item works with the following types of products:
- Drill
- Hammer Drill
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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.
brush ring melted
Ted - February 8, 2020
Tool Type
Drill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, soldering iron
Parts Used
Hardest thing about the repair was that the wires to the brush ring assembly were soldered on so you need to know how to do some simple soldering. Other then that it was a breeze to replace the brushes and the assembly.
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Stop working...got hot, would not move from forward to reverse mode... plastic melted on the ring
Greg - May 4, 2017
Tool Type
Hammer Drill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver
Parts Used
Disassemble... removed the ring... used soldering gun to remove wires. Reverse order to fix.
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The brush plate melted drilling a 1" hole through a brick facade.
Lance - January 4, 2017
👍 0 of 1 people found this instruction helpful
Tool Type
Hammer Drill
Difficulty
Medium
Time
15-30 minutes
Tools Used
Nutdriver, Soldering iron
1. Disassembled the drill with Torx nut drivers. Slowly separate the housing halves and beware the round spring on the direction switch, it will jump out and try to hide from you.
2. Removed the broken speed selector knob and replaced it with the new part.
3. Removed the brush plate and brushes.
4. Unsoldered one of the connections because solder had melted into the spade connector.
5. Installed the new brush plate.
6. Installed the armature and coil assembly.
7. Installed new brushes.
8. Assembled unit with Torx nut drivers paying close attention to wire routing, and carefully inserting the round spring for the direction switch.
2. Removed the broken speed selector knob and replaced it with the new part.
3. Removed the brush plate and brushes.
4. Unsoldered one of the connections because solder had melted into the spade connector.
5. Installed the new brush plate.
6. Installed the armature and coil assembly.
7. Installed new brushes.
8. Assembled unit with Torx nut drivers paying close attention to wire routing, and carefully inserting the round spring for the direction switch.
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Thanks for voting and helping fellow customers!
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Learn MoreOur 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.
