Dewalt 88445 O-ring 0.984 X 0.139 Inches Replacement Seal

Product Description

The DEWALT 88445 is a replacement O-ring designed for use in DEWALT power tools and accessories. This precision-molded sealing ring measures 0.984 inches in inner diameter with a cross-section of 0.139 inches, providing a reliable fluid and air seal within the tool assembly it serves. O-rings of this type are critical components in pneumatic and hydraulic tool systems, preventing leaks at joints, pistons, and valve assemblies. Installation is typically performed by DEWALT-certified technicians or experienced tool repair professionals during routine maintenance or component replacement service.

This O-ring is suited for use in DEWALT power tool repair and maintenance applications where the original sealing component has worn, cracked, or become deformed. It is a direct OEM-style replacement part, making it appropriate for service centers and field technicians who perform in-house tool repairs to restore proper tool function and extend equipment service life.

Key Features

• Inner diameter of 0.984 inches for precise fitment in designated tool assemblies
• Cross-section width of 0.139 inches for consistent sealing performance
• OEM replacement part for DEWALT power tools and accessories
• Restores proper sealing at pneumatic or mechanical joints during repair service

Compatibility

Designed as an OEM-style replacement O-ring for DEWALT power tools and accessories requiring a 0.984 x 0.139 inch sealing ring.

Installation Notes

Tool repair technicians should fully depressurize and disconnect any pneumatic or power source from the tool before disassembling to access the O-ring seat. Remove the worn O-ring carefully to avoid scoring the seating surface, and inspect the groove for debris or damage before installing the replacement. Lightly lubricating the new O-ring with a compatible grease prior to seating is standard practice to prevent tearing during assembly.

Technical Specifications

• Inner Diameter: 0.984 inches
• Cross-Section: 0.139 inches

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: 88445