Dewalt n399753 O-ring

Product Description

The DEWALT n399753 is a replacement O-ring designed to restore a proper seal in DEWALT power tools and accessories. O-rings of this type serve as static or dynamic seals at fluid or pressure interfaces, preventing leaks that can compromise tool performance or cause premature component wear. This part is sourced as a direct OEM replacement, making it the correct choice when serviceability and fit precision matter. Technicians and trade professionals handling routine tool maintenance or field repairs will find this a straightforward drop-in seal component.

This O-ring is suited for use in DEWALT power tool repair and maintenance applications. It is typically installed during teardown and rebuild of tool assemblies where sealing integrity is critical. Suitable for professional tradespeople performing in-shop or on-site tool service, it addresses seal failure that can lead to air or fluid loss in pneumatic or hydraulic tool systems.

Key Features

• OEM replacement O-ring for direct-fit serviceability
• Restores sealing integrity at fluid or pressure interfaces
• Designed to DEWALT specifications for consistent fit and function
• Appropriate for use in pneumatic and similar power tool assemblies

Compatibility

Designed as an OEM-style replacement O-ring for DEWALT power tools and accessories requiring part number n399753.

Installation Notes

Installation should be performed by a qualified technician familiar with DEWALT tool service procedures. Disconnect the tool from all power sources and depressurize any pneumatic lines before disassembly. Take care not to nick or stretch the O-ring during installation, as deformation will compromise the seal. Consult the applicable DEWALT service manual for assembly sequence and proper seating confirmation.

Technical Specifications

• Part Type: O-Ring

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: n399753