The components that make up your home plumbing system can't be expected to last forever. At some point, you may need to purchase replacement parts for your plumbing fixtures. The following are six things that you shouldn't assume when you're on the market for plumbing parts. 

You've found the right part as long as it looks like the part you're replacing.

Choosing a plumbing part to purchase based on appearances alone is never a good idea. Plumbing parts should generally come along with a part number. You can make sure that you're getting the right part for your needs if you shop by part number whenever possible. 

You should always buy plumbing parts from a local supplier.

It always helps to check online when you need a plumbing part. In some cases, you might be able to find the part you need at a low price more easily online than you could at a local plumbing supply store. This is especially true with smaller parts that are inexpensive to ship. 

You won't get any warranty coverage on replacement plumbing parts.

Warranty coverage on replacement plumbing parts gives you more confidence and potentially saves you money if parts malfunction in the near future. Fortunately, plumbing parts and plumbing part installations can often come along with warranty coverage that homeowners should take advantage of. 

You have to pay for new plumbing parts yourself.

While homeowners do have to pay for plumbing parts themselves in most cases, you might be able to get replacement parts paid for by home insurance coverage in some situations. If your plumbing system experienced damage that is covered under your home insurance policy, your home insurance should pay for or reimburse you for any new plumbing parts that you need. 

You can purchase and install any plumbing part yourself.

You should have a professional plumber assist you with selecting plumbing parts. You should also have a professional plumber install new plumbing parts for you rather than attempting to do your own installation. By relying on a professional, you can avoid mistakes that will cost you money and enjoy more peace of mind regarding the condition of your plumbing system. 

All plumbing parts are created equal.

Some plumbing parts are higher in quality than others. That's why it's good to look at reviews and research the reputation of the manufacturer of a plumbing part before you buy it. You rely on your plumbing parts to keep your plumbing system functioning properly, so it's always good to invest in quality. 

Contact a local plumbing parts supply service to learn more.