Description
Overview:
This Switch Unit is a genuine Makita replacement part for selected 18V cordless drills, including the DF457D and HP457D. Identified by MPN 638862-2, it restores reliable trigger control and electrical switching in your drill. Built with a durable moulded plastic body and metal contacts, the unit is designed to withstand everyday site and workshop use. It integrates cleanly within the handle of the tool and connects to the existing wiring as a direct-fit component, helping to resolve non-responsive triggers or intermittent power issues. Ideal for tradespeople and DIY users, this part keeps your Makita drill operating safely and efficiently, maintaining performance under load and supporting accurate speed response when paired with the tool's electronics.
Key Features:
- Genuine Makita part for assured fit and performance (MPN 638862-2)
- Direct replacement switch unit for selected 18V cordless drills
- Robust construction with quality plastics and metal contacts for longevity
- Consistent on/off switching to help prevent intermittent cut-outs
- Supports smooth trigger response for controlled drilling and fastening
- Designed for straightforward fitting with no modifications to the tool body
- Helps restore safe operation with proper electrical insulation
- Suitable for workshop, on-site, and domestic repair and maintenance
- Cost-effective fix to extend the working life of your drill
- Backed by Makita's OEM specification for compatibility
Typical Applications:
Replacing a worn, arcing, or non-responsive drill switch to restore reliable starting and control. Useful when tools exhibit intermittent power, trigger dead spots, or fail to start. Suitable for maintaining fleet tools, workshop repairs, and keeping site equipment in service.
Also known as:
Trigger switch, on/off switch, drill trigger, switch assembly, speed control switch, power tool switch, electrical switch unit.
Fits Models:
DF457D
DF457DWE
HP457D
Alternate Part Numbers:
638862 2, 6388622
Product Specifications
| L&S Part No. | 638862-2 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 638862-2 |
| Unit of Sale | 1 |
| Applications | DF457D, DF457DWE, HP457D |
| Machine Type | Drills, Hammer Drill |
| Fits Brands | Makita |
| Fits Models | DF457DWE |
