The first step in replacing the faucet valve stem is to shut off the water supply.
Outdoor faucet valve stem replacement. Secure the body of the faucet with a wrench. Locate the main water valve somewhere close to the water. There is a nut under the handle.
It will help to remove the valve stem. This will make the process easy and not messy. Reinsert the valve stem into the faucet assembly.