Description
Overview:
The Holder Cap for Makita GA9040S and GA9050 is a Genuine Makita replacement part designed to secure the carbon brushes within the motor’s brush holders. Also called a brush holder cap, it threads into the brush housing to keep the brushes seated firmly against the commutator, helping maintain consistent electrical contact and reliable motor performance. Manufactured from heat‑resistant, impact‑toughened plastic/phenolic material, it is suitable for a wide range of Makita power tools across grinding, polishing, sanding, cutting, and drilling tasks. Identified by OEM No. 643515-0, this cap supports routine maintenance and extends tool service life by protecting the brush cavity from dust and debris. It is a direct-fit component for compatible models, ensuring straightforward replacement with minimal downtime. This is a Genuine Makita part.
Key Features:
- Genuine Makita part for assured fit and performance (OEM No. 643515-0)
- Secures carbon brushes and maintains stable electrical contact
- Durable, heat-resistant construction suited to heavy-duty power tool use
- Direct screw-in replacement; simple to fit with basic tools
- Helps reduce arcing and intermittent power issues caused by worn caps
- Supports regular brush maintenance for longer motor life
- Designed to withstand vibration and workshop dust ingress
- Compatible across multiple Makita tools for convenient fleet maintenance
- Typically used alongside standard Makita carbon brushes in pairs (check your tool’s requirements)
- Non-wearing cap body; replace as needed when threads or seal show damage
Typical Applications:
Used during routine servicing of Makita angle grinders, rotary hammers, polishers, saws, and metalworking tools. This holder cap keeps the brush set correctly tensioned against the commutator, aiding smooth starts, consistent power delivery, and reduced brush wear. Ideal for workshop maintenance, on-site repairs, and refurbishing tools affected by dust, vibration, or age-related cap deterioration.
Also known as:
Brush holder cap, carbon brush cap, brush screw cap, threaded brush cap, power tool brush cover, motor brush cap, Makita brush cap.
Fits Models:
6924N, 9237CB, 9902, GA9040S, GA9050, HR3550C, JN3201, JR3030, JS3201
Alternate Part Numbers:
6435150
Product Specifications
| L&S Part No. | 643515-0 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 643515-0 |
| Unit of Sale | 1 |
| Machine Type | Angle Grinder |
| Fits Brands | Makita |
| Key Features | - Genuine Makita part ensures compatibility with specified models - Durable moulded plastic withstands heat and vibration - Threaded design secures brush holder assembly - Fits models including GA9020, GA9020S, HR3550C - OEM No. 643515-0 for easy identification and ordering |
| Fits Models | GA9040S | GA9050 |
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