Max kn12189 Cylinder Seal Replaces Kn12628

Product Description

The MAX kn12189 is a cylinder seal designed as a replacement component for pneumatic or power tool applications. Cylinder seals maintain the pressure boundary within a tool cylinder, preventing air or fluid bypass that would reduce tool performance or cause internal leakage. This part is noted as having been replaced by part number kn12628, making it relevant for techs sourcing legacy inventory or cross-referencing superseded part numbers. Installation is typically performed by tool service technicians during scheduled maintenance or after seal failure is confirmed through pressure loss or visible wear.

The kn12189 is applicable in tool service and repair scenarios where the original seal has worn, cracked, or lost its ability to hold pressure. It is suited for service shops and field technicians maintaining MAX brand power tools and pneumatic equipment. This part is a direct service replacement intended to restore proper cylinder function.

Key Features

• OEM-style cylinder seal for maintaining internal pressure integrity
• Superseded by MAX part number kn12628 for cross-reference sourcing
• Designed for use in MAX brand power tool or pneumatic tool cylinder assemblies
• Replacement seal addresses performance loss from wear or seal degradation

Compatibility

The kn12189 has been superseded by MAX part number kn12628. Technicians sourcing this seal should verify fitment against their specific MAX tool model before installation.

Installation Notes

Cylinder seal replacement should be performed by a qualified tool service technician familiar with pneumatic or power tool disassembly procedures. Disconnect the tool from all power and air supply sources before beginning any internal service work. Inspect the cylinder bore for scoring or damage prior to installing the new seal, as surface defects can cause premature seal failure. Refer to the applicable MAX service manual for correct assembly sequence and seal orientation.

Technical Specifications

• Part Type: Cylinder Seal
• Superseded By: kn12628

Standard Information

• Brand: MAX
• Manufacturer Part Number: kn12189