Xylem AC1642 Pump Impeller Key

Product Description

The XYLEM AC1642 is a pump impeller key designed to secure the impeller to the pump shaft. This small drive key prevents rotational slippage between the impeller and shaft, maintaining proper torque transfer and consistent pump output. It is a critical mechanical component in centrifugal pump assemblies used across plumbing, water treatment, and industrial fluid-handling applications. Installation and replacement are typically performed by licensed plumbers or pump service technicians during routine pump maintenance or impeller replacement service.

The AC1642 impeller key is suited for use in pump assemblies where a keyed shaft-to-impeller connection is required. It fits into the keyway machined into both the pump shaft and impeller hub, locking the two components together rotationally. This part is typically replaced when the original key shows signs of wear, deformation, or shearing from overload conditions. It is appropriate for residential, commercial, and light industrial pump service scenarios.

Key Features

• Secures impeller to pump shaft to prevent rotational slippage
• Designed for direct OEM-style replacement in compatible Xylem pump assemblies
• Small, precision-fit component for reliable mechanical engagement
• Suitable for continuous-duty pump operation in demanding service environments

Compatibility

Designed as an OEM-style replacement impeller key for compatible Xylem pump assemblies requiring a keyed shaft connection.

Installation Notes

Installation is performed by a qualified plumber or pump service technician. Shut off power to the pump motor and isolate the system from water pressure before disassembling the pump casing or removing the impeller. Inspect the keyway on both the shaft and impeller hub for wear or damage before installing the new key. Refer to the pump manufacturer service documentation for proper assembly sequence and fastener procedure.