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The MOEN 400891 is a two-handle faucet cartridge designed for right-hand installation in MOEN faucet systems. This OEM-style replacement cartridge controls water flow and temperature in compatible two-handle configurations. The 20-point stem design ensures proper alignment and positive engagement with the faucet body during installation. Licensed plumbers and skilled tradespeople typically handle cartridge replacements as part of routine faucet service and repair work.
The 400891 is suited for residential faucet repair applications where the original MOEN two-handle cartridge has worn, cracked, or begun to leak. It is intended for right-hand hot or cold position service depending on faucet configuration, and the 20-point stem interface helps maintain consistent valve operation over the service life of the fixture.
Designed as an OEM-style replacement cartridge for compatible MOEN two-handle faucet assemblies requiring a right-hand 20-point stem cartridge.
Cartridge replacement is typically performed by a licensed plumber. Shut off the water supply to the fixture at the nearest isolation valve or main before beginning work. Remove the handle and any retaining clip or nut before extracting the old cartridge. Consult MOEN installation documentation and local plumbing codes for proper reassembly and torque guidance.
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