513-721-5286 | 1-888-Ask-Noel | Mon-Fri: 8:00 AM – 5:00 PM

Kohler 51531 Tank Gasket

chat iconWHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026

$25.17

 

The Kohler 51531 (or K-51531) is a genuine OEM toilet tank gasket, designed to create a watertight seal between the toilet tank and the bowl. It is a replacement part used for plumbing repairs in various Kohler toilet models, including the Wellworth and Water-Guard series.

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: 951531 Category: Tag:

Kohler Tank Gasket

 

  • Kohler GENUINE Part
  • Made with durable material for a long lasting seal
  • Fits Cayuga toilet K-3440
  • Fits Wellworth Highline Trylon Barlow K-3510 K-3512 K-3514

 

51531

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…

“Wow!!!!! I'm so impressed. Y'all have a customer for life now. Thank you! ”
-Ernestine P
10/19/2022