Dewalt 174289 Piston Stop Bumper

Product Description

The DEWALT 174289 is a piston stop bumper, a replacement wear part used in DEWALT power tools to absorb impact and limit piston travel at the end of each stroke. This component acts as a cushion between the piston and the tool housing, reducing metal-on-metal contact and protecting internal components from impact damage. It is a direct OEM-style replacement intended for service technicians and repair professionals who maintain DEWALT power tools in the field or shop.

This piston stop bumper is suited for use in DEWALT pneumatic or reciprocating power tools where piston travel must be controlled and impact absorption is required. It is typically replaced during routine maintenance or when visible wear, cracking, or deformation is observed on the existing bumper. Tool repair technicians and service centers are the primary installers of this component.

Key Features

• OEM replacement bumper designed to limit piston travel and absorb end-of-stroke impact
• Protects internal tool housing and piston from direct metal contact
• Direct fit replacement for serviceability and minimal downtime
• Designed for use by qualified tool repair technicians

Compatibility

Designed as an OEM-style replacement bumper for compatible DEWALT power tools requiring a piston stop component. Refer to your tool model service manual or DEWALT parts lookup to confirm fitment before ordering.

Installation Notes

Installation should be performed by a qualified tool repair technician familiar with DEWALT power tool service procedures. Disconnect the tool from all power sources, including air supply for pneumatic tools, before disassembly. Inspect surrounding components such as the piston and housing for wear before installing the new bumper. Reassemble according to the manufacturer service documentation for your specific tool model.

Technical Specifications

• Part Type: Piston Stop Bumper

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: 174289