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Flush Valve 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.
Black ruber disc that snaps on to flush valve to create a seal to prevent toilets from leaking into the bowl.

chat iconWHAT OUR CUSTOMERS SAY…

“After trying all over my area, I couldn't find the part for the faucet in my older house. The part I needed was found on the first try on their website and ordering was very easy. It was after hours, but someone responded to my text right away. The part was shipped the next business day. After putting the new part in the faucet works better than it has for years! ”
-Mark B.
06/25/2026

$5.87

 

The American Standard Rubber Flush Valve Seal Seat Disc (033643-0070A / 33643-07) is a durable rubber snap-on disc designed for tilt-style flush valves.

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:

Crafted from heavy-duty, flexible premium rubber, this 3-inch replacement flush valve seal stops leaks right at the source. Thanks to its smart snap-on design, the seal disc actively pivots against the tilt-valve base to guarantee a perfect drop-in alignment with every single flush. The tool-free, push-on design means you can easily pull off your hardened, old seal and snap this replacement disc directly onto the actuating unit within minutes.

 

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.

 

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…

“Really great experience getting parts for my 30-year old frost free silcocks. They not only had the parts available, but they were shipped within a couple of hours. Great job, thank you! ”
-Phil R
02/08/2026
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