How to Replace Faucet Parts

Basic Faucet Parts

If you’re thinking of replacing or repairing a faucet at home, it’s probably best if you first get to know the basic faucet parts. Knowing the different parts will make the job easier; by helping you understand how the faucet works. With any luck, this will give you a jump on pinpointing the source of your leak as well.

There are three types of single handle faucets available on the market today; the ball faucet, the cartridge faucet, and the ceramic disc faucet.

Ball Faucet Parts


  • Handle
  • Screw cover
  • Handle screw
  • Cap with adjustable ring
  • Cam
  • Packing
  • Stainless steel ball
  • Seats
  • Springs
  • Spout
  • Aerator


Cartridge Faucet Parts

  • Handle cap
  • Screws for the handle
  • Temperature indicator
  • Handle
  • Screw
  • Handle adapter
  • Dome assembly
  • Pivot adapter
  • Pivot stop
  • Washer
  • Retainer nut
  • Retainer clip
  • Cartridge
  • O-rings
  • Spout


Ceramic Disc Faucet Parts

  • Handle
  • Screw cover
  • Allen screw
  • Cap
  • Cartridge screws
  • Ceramic disc cartridge
  • Cartridge seals
  • Plastic plate
  • O-rings
  • Cap clips
  • Spout


Parts Glossary

Most of the parts are self-explanatory but some of them might be hard to figure out. Some of the terms are explained below.

  • O-rings. These are also known as gaskets. They are used to ensure that the faucet’s joints are watertight to prevent leaks. O-rings can be made of metal or rubber. A worn out O-ring is a common source of leaks. If the leak is through the spout then chances are that you have a worn out O-ring in need of replacing.
  • Aerators. These are attached to the actual faucet to change the flow of water. It is usually made out of sturdy material. It prevents splashing and is designed to save water as well as faucet noise. Wall mounted faucets in the bathroom usually have larger diameter aerators.
  • Handles and controls. These are used to turn the faucet on and off. There are different designs for faucet handles to choose from. Handles are usually sold separately and not part of a faucet repair parts kit. They can be the source of a leak when they become loose or break off due to daily wear and tear. They should be replaced immediately to prevent excessive waste of water.
  • Washers. These are used to attach the aerator to the faucet stem. They prevent leaking and provide a better fit for the aerator. Washers are the first thing you need to replace when a faucet starts leaking. Worn washers create space that could be the source of leaks and drips.
  • Screws. These attach the washers to the faucet stem. Some screws require an Allen screwdriver to remove while some brands use regular screws. It is vital to check what screwdriver is needed for the job to save time and money.
  • Kitchen faucet parts. The basic design of these is the same as the faucets found in the bathroom. The difference depends on whether they are compression faucets that have separate controls for cold and hot water or a single handle faucet.


Final Words

A leaking faucet is a simple plumbing job that most homeowners can easily learn to do. Knowing the different parts of your faucet is the first step. The second step is to learn how to disassemble it. Since hiring a plumber to do the job is always expensive; learning the basics of plumbing repair will certainly help your family save money. You can buy replacement kitchen or bathroom faucet parts in most hardware or plumbing supply stores.