This is an authentic OEM sourced replacement brush cap. It is specially designed for Makita power tools. The purpose of the brush cap is to secure the carbon brush in the holder. Please note, this plastic item is sold individually.
You would need a flathead screwdriver to install or remove this brush cap.
Brush Holder Cap 643954-4
OEM part for: Makita
Part Number: 643954-4
Jump To:
Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Brush Holder Cap will fit the following 38 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Makita
Show More Compatible ModelsThis item works with the following types of products:
- Drill Parts
- Cordless Drill Parts
- Hammer Drill Parts
- Grinder Parts
Repair Videos ?
Customer Part Reviews ?
- 1
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 Brush Holder Cap
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.
Would not turn on
Tool Type
Grinder
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Stuck and worn brushes.
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Missing brush holder cap.
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers
Parts Used
Low on power, sometimes wouldn't turn on.
Tool Type
Grinder
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
2. Removed the screws holding the body together. (5 screws)
3. Removed the two dust brush covers and the two screw on brush covers.
4. Removed the two brushes.
5. Removed the brush holder with two wires. (mine was melted from the heat.)
6. Greased the gear head with a light grease. (I used superlube)
7. Reassemble in opposite order of taking it apart.
End bell, brushes and holder caps fused together - won't run
Tool Type
Cordless Drill
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Very fine emery cloth
2. Assembled new end bell, brushes and caps together.
3. Removed damaged end bell assembly from shaft.
4. Cleaned commutator plates with very fine emery paper.
5. Assembled new assembly to shaft.
6. Reassembled drill/driver following details noted in step 1.
Brush cap missing
Tool Type
Cordless Drill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
The brush set and end bell had been overheated due to a hard job
Tool Type
Cordless Drill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Vice
The parts simply unplug and re-plug to replace them. The beam type spring on the front of the drill that provides the detents for the torque on the screw drive function fell out and it wasn't clear how it went in (it slides into a groove on the left side) from the drawings.
Be very cautious with small parts/springs because they can shoot out of there holders.
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.