Dewalt n851639 Forward Reverse Actuator Power Tool Part

Product Description

The DEWALT n851639 is a forward/reverse actuator switch designed as a direct OEM replacement component for DEWALT power tools. This actuator controls the directional output of the tool motor, allowing the operator to select forward or reverse rotation. It is an internal mechanical and electrical interface component installed within the tool housing. DEWALT technicians, authorized service centers, and experienced repair professionals handle this type of replacement during motor direction fault diagnosis or routine actuator wear service.

This actuator is intended for use in DEWALT corded or cordless power tools that feature forward and reverse directional control. Typical install scenarios include warranty repair, post-failure parts replacement, or refurbishment of a tool showing intermittent or failed directional switching. The actuator integrates with the trigger and motor control assembly inside the tool body.

Key Features

• OEM DEWALT replacement part for forward/reverse directional control
• Direct fit into the original actuator position within the tool housing
• Controls motor rotation direction via internal switching interface
• Sourced directly from DEWALT parts and accessories line

Compatibility

Designed as an OEM-style replacement actuator for DEWALT power tools equipped with forward and reverse rotation selection. Refer to the specific tool service manual or DEWALT parts lookup to confirm fitment for a given model before ordering.

Installation Notes

Installation should be performed by a qualified power tool technician or authorized DEWALT service center. Disconnect the tool from all power sources and remove the battery pack before disassembly. Use appropriate screwdrivers and prying tools to access the actuator within the tool housing without damaging surrounding components. Follow the tool manufacturer service documentation for reassembly sequence and actuator seating confirmation.

Technical Specifications

• Component Type: Forward/Reverse Actuator Switch
• Part Classification: OEM Replacement Part

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: n851639