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Kohler K-1237539 Fill Valve Service Kit

Black plastic fill valave with yellow cap white plastic nuts and black rubber washers.
Kohler K-1237539 Fill Valve Service Kit - Image 2

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

$27.17

 

The Kohler K-1237539 is a genuine fill valve service kit used for repairing specific Kohler one-piece toilets.

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: 54539 Category: Tag:

Kohler Fill Valve 

 

K-1237539

 

  • The fill valve is a critical component in a toilet tank that controls the flow of water to refill the tank after flushing. This service kit allows the user to repair the existing fill valve by replacing internal components like the diaphragm and O-ring.
  • This genuine Kohler part is specifically designed for use with certain one-piece toilets, including the San Souci K-5172, K-4007, K-4000, and K-8687 models. It is compatible with various Kohler toilets produced between 1990 and 2001.

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…

“Hi, I just wanted to write back and tell you how much I appreciate the quick response and service. I'm old, and good customer service used to be the norm. Not anymore, so when a company gives GREAT customer service, I like to thank them for it. I really appreciate you taking the time to answer my question, and also the fast shipping on my part. Have a great day! ...Steve ”
-Steve
09/27/2024