Milwaukee 34-40-0002 O-ring 2.5 Inch Head

Product Description

The MILWAUKEE 34-40-0002 is a replacement O-ring designed to fit a 2.5-inch head assembly on Milwaukee power tools. O-rings in this position form a critical seal that prevents fluid or air leakage at the head interface. This part is a direct OEM-style replacement intended for use during routine maintenance or repair by service technicians working on Milwaukee tool equipment. Keeping an accurate seal at the head prevents pressure loss and protects internal components from contamination.

This O-ring is suited for maintenance scenarios where the existing seal shows wear, cracking, deformation, or leakage. It fits a 2.5-inch head and is the correct replacement part for restoring a proper seal on applicable Milwaukee assemblies. Technicians performing tool servicing or rebuilds will install this as part of a standard head service procedure.

Key Features

• OEM replacement O-ring for Milwaukee 2.5-inch head assemblies
• Restores proper sealing at the head interface
• Direct fit for applicable Milwaukee power tool platforms
• Suitable for use during routine maintenance or field repair

Compatibility

Designed as an OEM-style replacement O-ring for Milwaukee power tool assemblies using a 2.5-inch head configuration.

Installation Notes

Installation should be performed by a qualified service technician. Disconnect and de-energize the tool completely before disassembling the head assembly. Inspect the seating groove for damage or debris before installing the new O-ring, and avoid overstretching the ring during installation. Refer to the Milwaukee service manual for the applicable tool model to confirm proper seating procedure.

Technical Specifications

• Head Size: 2.5 inches

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 34-40-0002