Description
Overview:
The Makita 638739-1 Noise Suppressor is a Genuine Makita Part for selected corded tools, including GA4030 and GA4530 angle grinders. This compact, black, moulded module sits within the handle/switch area and is designed to filter electrical interference generated by the motor and brushes. By suppressing EMI/RFI and damping switching spikes, it helps maintain stable operation and reduces the chance of nuisance interference with nearby electronics. Built with a robust, potted construction and insulated leads for reliability in tough site and workshop conditions, it is a direct, like-for-like replacement for the original factory unit. Ideal for tradespeople and DIY users, it supports safe, dependable performance and keeps your tool working as intended without altering its feel or balance.
Key Features:
- Genuine Makita replacement part (638739-1) for assured compatibility and reliability
- Correct fit for the specified tools, matching the original harness position and footprint
- Durable, potted construction resists vibration, dust, and workshop conditions
- Helps suppress EMI/RFI and brush arcing for smooth, consistent tool performance
- Can reduce radio and equipment interference on 230-240 V mains during operation
- Compact module fits neatly in the handle cavity for straightforward reassembly
- Simple to install with basic hand tools; no modifications required
- Restores original function when the existing suppressor has failed or degraded
Typical Applications:
Used when servicing or repairing Makita corded angle grinders and shears to restore proper electrical noise suppression. Common during switch or wiring loom replacements, and in environments where reliable operation and reduced interference are important, such as fabrication shops, construction sites, maintenance workshops, and home garages.
Also known as:
Interference suppressor, EMI filter, RFI filter, mains noise filter, spark suppressor, line noise filter, filter capacitor module, suppression module.
Fits Models:
GA4030, GA4030R, GA4530, GA4530R, GA5030, GA5030R, JS1601, JS1602, PJ7000
Alternate Part Numbers:
6387391
Product Specifications
| L&S Part No. | 638739-1 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 638739-1 |
| Unit of Sale | 1 |
| Machine Type | Angle Grinder |
| Fits Brands | Makita |
| Key Features | - Genuine Makita part for GA4030, GA4530, and other models - Suppresses EMI/RFI for stable tool performance - Potted construction resists vibration and dust - Fits handle cavity for easy reassembly - Operates on 230-240 V mains to reduce interference |
| Fits Models | GA4030R | GA4530R | GA5030R |
