Replacement Guide - How to replace cartridge from centerset lavatory faucet?

Please refer to the image for parts.

1. You will first need to start by turning off the water feed to the faucet.
   
   
2. After you have successfully shut off your water feed to the faucet you will need to open the hot and cold handle to release all water that may be left inline.
   
   
3. Insert the Allen wrench provided into the handles set screw (which can be found just below the lever on the handle) and turn counter-clockwise to loosen the handle.
   **Please note that not all lever handles have a set screw some may have a hot or cold index button that will need to be removed in order to get to the handle screw.
   Once the set screw/ screws are loose you will be able to remove the handle by pulling up.
   
   
4. Now place your handle into the box for your parts. You will now be able to see the cartridge and stem adaptor. The stem adaptor can be removed from the cartridge, after it is removed you will need to take an adjustable wrench and remove the cartridge locknut. Fit your adjustable wrench to the cartridge locknut and turn it counterclockwise until you can remove the locknut by hand.
   
   
5. At this point, you should be able to grab a pair of channel locks and fit them to the stem of the cartridge and remove it by pulling up.
   
   
6. Now take your new cartridge and place it back into the valve, notice that there are two notches on the sides of the cartridge and there are two cutouts on the valve body where the cartridge will fit into place.
   
   
7. Take your cartridge cover and thread it back onto the valve body securing the cartridge. Now take your stem adaptor and fit it onto the cartridge. The handle will now fit back in place. If there are any complications with the handle fitting right on the valve check and see if the cartridge is in place properly also make sure the stem adaptor is pushed down on the cartridge all the way. Retighten the handles screw and now your job is complete.

YouTube Channel Video: How to Replace a Washerless Cartridge

YouTube Channel Video: How To Replace Cartridge of Washerless Faucet