Step 7 · Remove Old Cartridge
The old cartridge is now free to be removed. Many Moen replacement cartridges come with a small plastic tool designed to help with this. Insert the tool over the cartridge stem and use it to rotate the cartridge back and forth to break the seal. Then, grasp the stem of the cartridge with adjustable pliers and pull it straight up and out of the faucet body. This may require some wiggling and steady force, especially if there is significant mineral buildup.