Description
Overview:
The DC-Speed Control Switch is a Genuine Hikoki/Hitachi part designed for cordless impact wrenches, ensuring accurate variable speed control under load. Built with a robust polymer housing and metal contact set, it withstands frequent trigger use and workshop conditions. This unit manages DC power delivery to the motor for smooth start-up, consistent speed, and reliable torque control, helping to protect the motor and gearbox over time. It is a direct replacement for OEM No. 376527 and supersedes 339217, making it a dependable fit for the WR36DA and WR36DB platforms. Suitable for trade and DIY users, it restores proper trigger response where speed modulation has become erratic, intermittent, or failed due to wear, contamination, or internal arcing. Genuine Part.
Key Features:
- Genuine Hikoki/Hitachi replacement for correct fit and performance
- Direct replacement for OEM No. 376527; replaces previous 339217
- Durable polymer body with metal contacts for long service life
- Precise variable speed control for improved fastening accuracy
- Smooth start-up helps reduce inrush shock to motor and drive
- Designed specifically for Hikoki cordless impact wrenches
- Supports efficient battery use by matching speed to the task
- Consistent trigger response for repeatable results on site
- Easy to install with model-specific form factor and lead layout
- Helps prevent further wear on motor, brushes, and gearbox
- Suitable for routine maintenance and repairs to minimise downtime
Typical Applications:
Restoring or improving speed control in Hikoki cordless impact wrenches used for structural steelwork, automotive and plant maintenance, timber fixings, anchor installation, machinery assembly, and general construction tasks where controlled start and accurate driving speed are important.
Also known as:
Trigger switch, variable speed trigger, electronic speed controller, DC trigger module, throttle switch, motor speed regulator, control trigger assembly.
Fits Models:
WH18DBDL2, WH18DBFL2, WH18DBSL, WH36DB, WR18DBDL2, WR36DA, WR36DB, WR36DC
Alternate Part Numbers:
339217, HKK376527, HKK339217, 376527
Product Specifications
| L&S Part No. | HKK376527 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 376527 |
| Unit of Sale | 1 |
| Applications | WH18DBDL2, WH18DBFL2, WH18DBSL, WH36DB, WR18DBDL2, WR36DA, WR36DB, WR36DC |
| Fits Brands | Hikoki |
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