Changing Moen Kitchen Faucet Cartridge
Fit the cartridge puller over the end of the cartridge and screw the center of the puller into the hollow threaded end of the stem. Position the puller so it fits tightly in the notches of the stem. Turn the puller side-to-side a few times to loosen the cartridge.
Cartridge Identification and Installation Help. NOTE: If your Moen faucet was manufactured after 2009 and you are looking at the 1225 cartridge, it is possible that you may actually have a 1255 cartridge because cartridge styles can vary by the date of manufacture. If you're not quite sure, we'd recommend that you refer to the original documentation that came with your faucet, or feel free to
Fast and effective way to stop a leaking Moen single lever spout. Detailed removal and installation of Moen 1225 cartridge.
Moen has a limited life time warranty on their faucets to the original owner. If your faucet is dripping or leaking around the base you may not need to replace it, you may just need to replace the cartridge and o-rings. If you call Moen they will send you the parts for free.
Grasp the cartridge stem with pliers and pull the cartridge straight up out of the valve assembly. Using a Philips head screwdriver, unscrew the stem extension. Reattach the stem extension to the new cartridge.
To replace the cartridge, grip the top of the cartridge with pliers and pull straight up to remove it. On some models of faucet you may have to remove the cartridge with a specialized tool, which will be indicated on manufacturer's instructions. With the cartridge out, inspect O-rings for any damage. Replace all rings with the matching size. If the cartridge has any damage, install a new cartridge making sure it is aligned correctly.