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Fluidmaster 3″ 5403 Universal Toilet Flapper

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“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026

$24.17

 

Stop your running toilet instantly and cut down on water bills with the Fluidmaster 5403 Universal 3-Inch Toilet Flapper. This high-performance plumbing replacement part is engineered to eliminate ghost flushing, leaks, and noisy tank fills in newer, high-efficiency toilets. Built with a heavy-duty solid frame and an adjustable water-saving dial, this 3-inch flapper optimizes your toilet’s flush volume while providing a leak-free seal that stands up to hard water.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 95403 Category: Tags: ,

The Fluidmaster 5403 is a universal adjustable 3-inch toilet flapper designed to stop running, leaking, or “ghost flushing” toilets. It is engineered for modern, high-efficiency toilets (1.28 to 1.6 gallons per flush) manufactured after 1994.

 

5403

 

  • Stop a running toilet and optimize your flush with the 5403 Water-Saving Flapper
  • Universal – Fits most 3” flush valves
  • Fits American Standard®, Kohler® Cimmaron, Toto® and other toilets
  • Easy to install
  • Adjustable dial for flush performance and water savings
  • Long lasting silicone seal
  • Chlorine and hard water resistant**
  • Solid frame for the best seal- no twisting
  • 10 year warranty

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

chat iconWHAT OUR CUSTOMERS SAY…

“Made a purchase online (I live in a different state). They were super responsive and helpful. I literally had the item in my hand within 24 hours. Simply amazing service! ”
-Craig S.
01/05/2021