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Flush Valve Seat Disc for American Standard Toilets 33643-07

Black ruber disc that snaps on to flush valve to create a seal to prevent toilets from leaking into the bowl.
Flush Valve Seat Disc for American Standard Toilets 33643-07 - Image 2

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“Y'all are amazing. I live in Texas and it's faster to order express from Noel's than go to local parts stores. Customers can text Noel's a picture of the part they need and Noel's will find that part or the equivalent and text the link. They have 2-3 day shipping available. The staff answers the phone quickly, politely and they know their stuff! The unit I needed plumbing parts for was built in the 30s. No matter, Noels has me covered. I highly recommend them. Thank you Noel's for your efficient, old school excellence combined with current technology! You have saved me so much time, money, and aggravation! A++++++ ”
-Thalia,
07/03/2026

$5.87

 

The American Standard 33643-07 refers to a specific model number for a snap-on rubber seat disc/flush valve seal used in many older American Standard toilets. This part is essential for creating a proper seal in the toilet’s flush valve mechanism.

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: 14204 Category: Tag:

Snap on Disc for American Standard Toilets

 

33643-07

 

  • Flush valve seal/seat disc (also known as a snap-on disc or tilt valve disc).
  • Made of durable rubber.
  • The snap-on design allows the seal to pivot, ensuring a good seal on the flush valve base to prevent leaks and “ghost flushes”.
  • It is compatible with many older American Standard toilet tanks, including models like 4080, 4075, 4070, 4054, 4052, 4050, 4049, 4048, 4041, 4040, 4033, 4024, 2031, 2029, 2016, 2012, 2009, 2008, 2007, 2006, 2004, 2003, and 2002. It is also a replacement for use with the American Standard Heritage one-piece toilet (2031.016) and Lexington one-piece toilets (2007.012 and 2006.014).

 

Customer submitted image. 

 

Common questions about this product

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

Yes, this aftermarket part will replace your OEM 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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Just want to say THANK YOU for your help with this! I couldn't believe the handle arrived Thursday (after ordering Wednesday). I brought it up to my dad's house Friday and just looking at it I didn't think it was going to fit....but it fit perfectly. So appreciative for your expertise and quick shipping! ”
-Ashley K.
02/04/2023
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