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Kohler 87998 Toilet Flush Valve Kit

Black plastic flush valve with red rubber flapper and grey foam gasket.

chat iconWHAT OUR CUSTOMERS SAY…

“Order received and installed. Thank you very much (spoken mentally in my best Elvis voice). Really is nice to know that there is still a business out there that's got their act together! Appreciate the quick service and correct parts shipping. Thanks again.. jP ”
-Jack P.
04/02/2026

$52.17

 

The Kohler 87998 is a genuine, 2-inch black plastic and brass toilet flush valve kit. It features a unique lug-and-twist style mechanism designed specifically to replace leaking or worn-out factory components inside select one-piece Kohler toilet models.

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

SKU: 987998 Category: Tag:

Is your Kohler toilet running constantly or flushing weakly? Restore peak performance with the KOHLER 87998 Flush Valve Kit. Designed exclusively as an OEM (Original Equipment Manufacturer) replacement, this corrosion-resistant flush assembly guarantees a perfect seal and reliable, whisper-quiet flushing.

 

87998

 

  • Kohler GENUINE Part
  • Flush valve kit for Gabrielle, Santa Rosa, and other Kohler toilets
  • Compatible with the following Kohler models: Santa Rosa 3323, 3803, 11899, Gabrielle 3322, 14257, 14258, 14286, Kathryn-3324, 14268 and other various models

 

Customer submitted images. 

 

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.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“Thank you very much. Your customer service is outstanding. Since I want to keep my very old (1988) Kohler San Raphael toilet for years to come. , it’s good to know that you have parts I could need in the future! ”
-Cathy G
10/31/2024
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